Why am I not aware of the Self?

Sri Ramana Maharshi:

There is no duality. Your present knowledge is due to the ego and is only relative. Relative knowledge requires a subject and an object, whereas the awareness of the Self is absolute and requires no object.

Remembrance also is similarly relative, requiring an object to be remembered and a subject to remember. When there is no duality, who is to remember whom?

The Self is always present. Each one wants to know the Self. What kind of help does one require to know oneself? People want to see the Self as something new. But it is eternal and remains the same all along. They desire to see it as a blazing light etc. How can it be so? It is not light, not darkness. It is only as it is. It cannot be defined. The best definition is 'I am that I am'. The srutis (scriptures) speak of the Self as being the size of one's thumb, the tip of the hair, an electric spark, vast, subtler than the subtlest etc. They have no foundation in fact. It is only being, but different from the real and the unreal; it is knowledge, but different from knowledge and ignorance. How can it be defined at all? It is simply being.