There is something inside us that is beyond the body and the mind. It is neither physical nor mental, it is pure presence. When you come to know this presence for the first time, you know you are, for the first time you feel yourself, that you exist. And this presence is the ultimate experience because it is the Ultimate Reality, it is the Truth. As this feeling of presence deepens, you begin to feel that it is not inside you, it is you. Further, this presence knows no birth nor death, it never grows nor decays; it always remains what it is, it is constant. As you are rooted into this presence, you know everything that is worth knowing in this Existence.