Inter-Cultural Conceptions of Extra-Occular Vision
Chakra theory
Specifically,as to the issue of the Third Eye,my two major sources on it are Lobsang Ramapa's book with that title (his work is very questionable although very interesting) and some reading on the concept of the chakras in yoga and the adaptation of the concept in Western esotericism,along with similar ideas in the Yoruba Orisa tradition.
The basic notion is that the human being possess a third eye that enables perception of non-material realms of existence.Some accounts locate that eye between the physical eyes,and some identify it with what is understood in Yoga as a chakra or energy center located in what is understood as the subtle body or energy matrix that surrounds and interacts with the body,transmitting energy from other dimensions into the self, projecting energy from the self and maintaining equilibrium between the self and the rest of the patterns of energy that the universe consists of..A related perspective correlates it with the pineal gland,which such accounts locate between the eyes,thereby identifying the glands as the physical counterpart of the chakras.
Theories of Relationships between Physical Vision and Levels of Perception
The Classical Yoruba conception of the Orisa tradition presents a related idea in terms of a mode of perception related to physical sight but understood instead as an expansion of that sight beyond the frequency of signals that are discernible to the physical eyes.That is the understading of it I have deduced from my experince in relation to such sources as a paper on Classical Yoruba art which claims that the images of bulbous eyes in such art refers to such an extension of vision,along with Rowland Abiodun's (?) beautiful essay on conceptions of vision in Classical Yoruba thought where vision is associated with a range of capacities,from reflection,to imagination and psychic perception,going beyond what the eye is conventionally able to see.This can also be related to Aristotle's conception of the relationship between vision and reflection,perhaps in his Metaphysics, and to Moyo Okedji's conception of semioptics,which develops a focus on vision in relation to cognition.But as the critic in Africa's Ogun observes,such emphasis on vision needs to be complemented with a sensitivity to the entire range of sensory possibilities.Along those lines,Yoga locates the psychic centers all over the body and the Rosicrucian order AMORC develops a system of cultivating psychic sensitives through various senses.
Spiritual and Psychic Development as Essentially a Do it Yourself Activity
My experience with issues of development of the self beyond the limitations of conventional education as popularised by Western culture is that it is often a highly individual affair.A friend of mine once likened it to navigating one's way through a river by using stones in the river bed which are not visible on the surface of the river.Each person who does it will have to use the same stones as stepping points if they are to pass through that river,but the fact that they cannot see those stones means that a lot of reliance will have to be placed on individual initiative,meaning each person's experience will be unique.
Along those lines,I think that nobody else's story or technqiues are not likely to be adequate for any other person.They can help,but to a large extent one has to navigate the challenges and opportunities oneself and discover what works best for one ,which might not prove relevant at every point in one's life,meaning one has to strive to be stable,steady and consistent,while responding to change in one's self and the relationship of the self with the rest of the world.At least,that's my approach.
I would suggest that you describe your experience.Then I would reflect on it and make comments as well as I can and then relate it to the concepts and possibly experiences of the third eye I am familiar with.If you were to discuss the experiences in the open forum the rest of us might able able to learn from it.If you dont want to discuss the experiences in the open forum you can write to my email.If you dont want to discuss it all,then we could rest with what we have discussed so far.
The Fear that Emerges from Exposure to Novel Realities
As for being terrified as you described,that would be expected if one is penetrating into realms of being that are not discernible to most people,and so do not form part of what one has been taught to expect of reality.But I would urge that one should gather momentum and proceed,as long as no danger is evident,even if one has to take sabbaticals, from practice so as to let one's system acclimatise to the new orientation into which the self has been initiated.Such sabbaticals could last as long as one considers adequate,depending perhaps on the intensity of the exposure one is acclimatising to.
Meditation and similar disciplines are techniques for expanding consciousness to take in more than what is normally available and some of that perception is so well outside the range of conventional experience that it could be frightening,even though at times it has been staring us in the face all the time and we simply were not able to understand it for what it is,like an ant that sees human beings everyday but does not know what they are.If that ant is one day able to understand what a human being is,at least to a degree,since even human beings have a quite limited understanding of themselves,if there is little or no tradition of knowledge of humans in the ant world,the ant will have to rely on trial and error to correlate that knowledge with its more limited universe.If such knowledge already exists in the ant world,it would have to relate such new knowledge to other accounts of humans in the ant world,most,if not all of which will necessarily be fragmentary,centered on the limitations of individual perception etc,and make the most of such fragments.
I am not implying a comparison of superiority between the ant and the human being,and therefore between the human being and what they perceive through such expanded perception,since from some perspectives the human being is not necessarily superior to the ant,but is better understood as different,being a different mode of being.I am trying to suggest what I suspect is the distance between the reality of the universe and what we are able to perceive with our conventional understanding and any other perception,even those coming from meditation,and similar disciplines.
Suggestions about Sources of Information
Ornella Corozza's Near Death Experiences..
For an exploration of conceptions of the relationship between aspects of the self ,the body an levels of consciousness a useful book might be Ornella Corozza's Near Death Experiences.
It is also useful to familiarize oneself with as broad a range as possible of accounts by others who explore similar possibilities.In that regard the list is endless.Nothing can replace the combination of practice and reading.As much reading as possible.
"On Invoking Spirits" and "Shrines as Psychic Batteries".
I have something I wrote some time ago which I have will post soon.Its on invoking spirits which might be helpful,since its another branch of similar interests.I will also post an essay "Shrines as Psychic Batteries" on how my psychic sensitivities were stimulated through meditation on sacred trees in Benin-City.
Chaos Magic,Hinduism,Buddhism and Yoga.
I have found the Wikipedia entry on Chaos Magic helpful on relationships between faith and knowledge.You could read about meditation.It seems,though,that lot of the material on meditation is rather general,although a lot of techniques and ideas can be learnt particularly from Classical Indian thought,specfically,Hinduism,Buddhism and Yoga.
Christiam Mysticism: St.John of the Cross .
A writer that comes to mind,even though he might not be relevant to you,is the Christian mystic St.John of the Cross.I was wondering if his emphasis on what he describes as contemplative purgation,exresed in terms of the imagery of the self being transformed through fire might be helpful to you. If you are in Nigeria you might find him in either in general bookshops or Cathoc church bookshops,such as St.Dominic's bookshop in Yaba.He can be a demanding read,but very powerful.A master of sublime beauty,particulary in his poetry,and muscularly potent in his exegesis of that poetry.
Islamic Mysticism:Ibn Arabi
Another writer who seesm to emphasise the opening to vast possiblities in terms of the distance between modes of perception,although that's a point that most explorers of such possisibilities depict, is the Islamic mystic Ibn Arabi,who wrote of perceving an ocean without shore and a shore without ocean.The bookm that intrduced me to him is The Unlimited Mercifier.
Western Esotericism:Aleister Crowley,Dion Fortune and AMORC
One person whose influence resonates throughout the Western esoteric tradition since the 20th century and who is a true conoiessuer of the unknown,the frightening and the courage to voyage as far as one can is the English occultist Aleister Crowley.In my view,any adventurer into unconventional realms of being will need something like Crowley's unrelenting spirit,his love of experiment,his absolute devotion to his calling.His weakness,in my view,was that he did not appreciate sufficiently the value of a moral base in his investigations.In that regard,Buddhism ,Christianity and Hinduism are far superior to the achievements of people like Crowley,although it seems to me that those older traditions are very careful not to reveal too much.For Crowley and other Western occultists,like the more balanced Dion Fortune,there are many occult bookshops in Nigeria.
One can learn a lot from the the Rosicrucian order AMORC.Along with meditation,central to their methods,they integrate ritual,broad philosophical and scientific study,techniques for psychic development and exposure to an almost global range of knowledge traditions.They are very active in Nigeria and online.
The Classical African Context: Owen Burnham and Ayi Kwei Armah
I would like to suggest writers working from an African context,although my knowledge there is much more limited,particularly since most of what I have read so far does not describe the techniues used in terms of a rationale that can be applied outside the specialised contexts of particular religions.Of what I have read of African techniques of expanding consciousness,perhaps the best is African Wisdom by Owen Burnhan,a small but very rich book.I will post a review of the book.Another is the conversations between the healer Damfo and Densu in Ayi Kwei Armah's The Healers,a very powerful work which needs to be studied repeatedly and applied imaginatively.I have a blog where I am reproducing those conversations.Most of the other material I have read in relation to Africa is of a general theoritical nature,although theory is vital.I understand Malaudama Patrice Some is quite good,though.
The African Diaspora: Baba Ifa Karade.
One could read some powerful looking material coming out of the African Diaspora and very visible on Goggle,such as the work of Baba Ifa Karade on his priestly traning in Ifa.
The Internet
Of course,the material on all these subjects on the internet is as good as infinte.All the writers mentioned above are well represented online.The scope of the literature available through online outlets like Amazon is also difficult to overestimate.