Most of the time it is not you who speaks when you say or think "I" but some aspect of that mental construct, the egoic self. Once you awaken, you still use the word "I," but it will come from a much deeper place within yourself. Most people are still completely identified with the incessant stream of mind, of compulsive thinking, most of it repetitive and pointless. There is no "I" apart from their thought processes and the emotions that go with them. This is the meaning of being spiritually unconscious. When told that there is a voice in their head that never stops speaking, they say, "What voice?" or angrily deny it, which of course is the voice, is the thinker, is the unobserved mind. It could almost be looked upon as an entity that has taken possession of them. Some people never forget the first time they disidentified from their thoughts and thus briefly experienced the shift in identity from being the content of their mind to being the awareness in the background. For others it happens in such a subtle way they hardly notice it, or they just notice an influx of joy or inner peace without knowing the reason.
— Eckhart Tolle