THE NATURE OF THE EGO-SELF, Ramana Maharshi

Ego is non-existent, otherwise you would be two instead of one – you the ego and you the Self. You are a single, indivisible whole. (Ramana Maharshi, Guru Ramana.)

The ego or separate soul is a concept. God, the world, the mind, desires, action, sorrow and all other things are all concepts. - Ramana Maharshi

The ego and the mind are the same. The ego is the root-thought from which all other thoughts arise. (Ramana Maharshi, Talks with Sri Ramana Maharshi.)

Between spirit and matter, the self and the body, there is born something which is called the Ahamkara , the ego-self, Jiva , the living being. Now what you call your self is this ego-self which is different from the ever-conscious Self and from unconscious matter, but which at the same time partakes of the character of both spirit and matter, Chetana and Jada . (Ramana Maharshi, Sad Darshana Bhashya)

It comes into being equipped with a form, and as long as it retains a form it endures. Having a form, it feeds and grows big. But if you investigate it, this evil spirit, which has no form of its own, relinquishes its grip on form and takes to flight. (Ramana Maharshi, Forty Verses of Reality)

The ego is described as having three bodies, the gross, the subtle and the casual, but that is only for the purposes of analytical exposition. If the method of enquiry were to depend on the ego’s form, you may take it that any enquiry would become altogether impossible, because the forms the ego may assume are legion. Therefore, for purposes of Jnana-vichara, you have to proceed on the basis that the ego has but one form, namely that of Aham-vritti. (Ramana Maharshi, Maharshi's Gospel)

This inert body does not say “I.” Reality-Consciousness does not emerge. Between the two, and limited to the measure of the body, something emerges as “I.” It is this that is known as Chit-Jada-granthi (the knot between the Conscious and the inert), and also as bondage, soul, subtle-body, ego, samsara , mind, and so forth. (Ramana Maharshi, Forty Verses of Reality)

For Him who is immersed in the bliss of the Self, arising from the extinction of the ego, what remains to be accomplished? He is not aware of anything (as) other than the Self. Who can apprehend his State? (Ramana Maharshi, Forty Verses of Reality)