It is said that the heart is in the microcosm just as the orb of the sun in the macrocosm. The mind in Sahasrara is like the disc of the moon.
Ramana MaharshiYou are the witness of the three bodies: the gross, the subtle, and the causal, and of the three times: past, present and future, and also this void. In the story of the tenth man, when each of them counted and thought they were only nine, each one forgetting to count himself, there is a stage when they think one is missing and do not know who it is; and that corresponds to the void. We are so accustomed to the notion that all that we see around us is permanent and that we are this body, that when all this ceases to exist we imagine and fear that we also have ceased to exist.
Ramana Maharshi