American psychologist Julian Jaynes, who investigated the origin of consciousness, says that ancient people had no consciousness as we know it (2). He also says that letters discovered by Homo sapiens at about 3000B.C. for the first time relate to the origin of consciousness. Moreover, he also says, “Is not the reason for the localization of language area in left hemisphere because right hemisphere was the organ of controlling God language?” He says that ancient people made decisions by hearing the voice of God produced at and transmitted from the right hemisphere to the left hemisphere through the frontal commissure. Consciousness as stated here indicates the introspective state of what ‘I’ can objectify ‘myself’. It shows the state of mind which can objectify what a state ‘I’ am put in ‘now’ and ‘here’ in the world spread before ‘my’ eyes. Ancient people until around 1000B.C. had no such consciousness. For proof of that, Julian Jaynes mentions the fact that a description and a vocabulary showing consciousness are not found in “the Iliad”, the first manuscript of human beings which can be translated certainly, and that many descriptions are found in which Gods appear to urge decision-making to heroes occasionally in “the Iliad”, and similarly many descriptions are found in the Old Testament until the Book of Samuel that God Yahwe appears as a voice urging decision-making to Moses and others. The Iliad was created by the tradition of wandering minstrels called reciters, and the time of creation appears to be between 1230B.C. in which events expressed were actually happened and 900-850B.C. in which it was written down in discovered Greek letters. And it is said that the Five Books of Moses and the Book of Samuel were written in ca.1500B.C. and in ca.1000B.C., respectively. According to Julian Jaynes, these two facts seem to show that consciousness formed by using letters wrote down the voice of God heard before 1000B.C. which is a boundary period as far as consciousness formation. Julian Jaynes does not mention how the origin of consciousness relates to letters. How does the origin of consciousness relate to letters? Scientifically acknowledged is the fact that the brain is plastic. In the womb or after birth, the network of brain nerves are formed by reconstruction and degeneration through environments and experiences. Use of letters should be included in those experiences. Furthermore, it seems to affect the brain more deeply than we imagine. What kind of fact is this? When words corresponding to external things and phenomena were expressed and remembered as image symbols, letters, the neurons corresponding to them are formed in the brain. For example, let us think of the word, sea［si:］. It is certain that different events will take place in the brain between when we remember this word sea as sound ［si:］and when we remember it as letter, ‘sea’. To use a metaphor, it means that the sea existing in the world is replaced by the word, letter ‘sea’ in the brain like a mirror image. In other words and languages same situations will happen and as a result, the external world will be replaced by symbols, letters, in the brain entirely as it is. Even ‘myself’ become to be in the brain possessing hands and feet and body. Since it is elucidated by the experiments in which micro electrodes are inserted into the brain that the neurons that respond to specific faces or historical architectures or letter string of one’s own name exist at the middle part of temporal lobe in the human brain, and that such neurons are involved in perception and recall (image formation) (3, 4), so it is probable that the neurons responding to the words indicated as image symbols, letters, are formed in the human brain. These facts can be applied to the recognition of letters in the blind. As the experimental result that both visual sense with deteriorated resolution and tactile sense are equivalent regarding letter recognition is obtained (5), it is also more probable in braille and finger letters of the blind that tactile information is converted into visual ones though perception itself is executed by tactile sense. Actually like this, to acquire consciousness indicates the state in which the external world is inscribed and replaced in the brain by letters of language. However, we cannot remember this fact, because we do not remember and cannot recollect things of our infant period in which we did not have consciousness. Then, what kind of relation exists between the voice of God and this fact? It is generally known that functional asymmetries in the right and left hemispheres of a cerebrum exist. The left hemisphere is superior in analytical and successive function such as language and calculation. The right hemisphere is superior in overall and spatial functions such as geographical discrimination and form recognition. Will not literal learning be performed by cooperation of both right and left hemispheres, i.e. in such a way as the right hemisphere leads the form recognition and the left one does the confirmation of a sound and writing by right hand? The symbol is a virtual image. What was heard as the voice of God is as it were a virtual image (virtual image in a sense of being not a sound from the outside), so if the functions of both area in right hemisphere producing the voice of God and recognizing to manipulate symbols are antagonistic, will not the suppression of the voice of God be likely to take place? Living things cannot have functionally antagonistic designs at the same time, for example flying in the sky is not compatible with running fast on the ground. The social utility and usefulness of visual symbols, letters, probably exceeds and suppresses the function of the voice of God. However, this does not mean the extinction of the area producing the voice of God. Accordingly, taking the plasticity of the brain into consideration, is not there a possibility that the function will be recovered by some stimuli? We Homo sapiens will lose the voice of God, instinct, due to literal learning. Then, what happens to the voice of God after not having been heard? Due to the theory of association in which Sigmund Freud used at psychiatric therapy of a neurotic patient, if unconscious wishes which are appearing as neurotic symptoms and are not noticed by a neurotic patient are informed by therapist for a neurotic to be conscious of, neurotic symptoms will disappear (in transference) (6). If this fact is applied to the relationship between the voice of God and literal learning, Homo sapiens had heard the voice of God and obeyed it when they did not yet have consciousness without having letters, but when they can ‘look’ at the voice of God objectively by visual symbols, letters, the voice of God (as symptoms, as it were) which they obeyed unconsciously will disappear. In the case of neurosis, transference of symptoms will be expressed by the form of love to the therapist, however, in case of the voice of God, it seems to be represented as an idea of God. Accordingly, it is expected that a people or a culture without letters does not have an idea of God. Actually, the Incan Civilization, without symbols, letters and money, did not have an idea of God and a word itself corresponding to God. The Incan Civilization was governed by animistic Weltanschauung which believes in the existence of the soul and grasps all things of external world by personification (7). And similarly, the Ainu, without symbols, also grasps natural world by personification. Though they have a word ‘kamuy’ corresponding to Japanese word of god ‘kami’, it was not an ideal, absolute God but individual things and matters of the external world such as a bear (=kamuy, kimun-kamuy), an owl (kotankor-kamuy) , an orca (repun-kamuy) and sun (tocaptup-kamuy). ‘Kamuy’ means a bear and a god. ‘Pito’ (corresponding to Japanese word, ‘hito’) means an honorific of god and of man. A man and a god are called by the same word (8). Namely, a god of the Ainu means a god and a man simultaneously. Consciousness means that ‘I’ am formed. That is to be able to objectify ‘myself’, finding another ‘me’ in ‘myself’. That is to be able to watch ‘myself’ as another person. In Nature, no ‘I’ exists originally. No species exists which insists ‘me’ except for human beings. Except for species with intimate relationship between parent and child, some primate species for example, individuals within species can enough to recognize other individuals as same species individuals and need not to be individuals having each particular ‘me’. In most species, ‘the self’ which possesses identity can be said to dissolve into other individuals reciprocally. Since it is known that chimpanzees, closely-related to the species of Homo sapiens, can recognize their own mirror image as their own image, they seem to have at least the same level of intelligence as that of mirror-image stage of human beings. However, it is not clear that they have ‘me’ and they can objectify themselves without a mirror. Probably they do not. Because it is essential for the formation of consciousness that the right hemisphere changes into another personality coping with the left hemisphere by suppressing the voice of God through literal learning. Let us look at the mechanisms of consciousness formation.