Sarevamhi eta dhiram, brahma, i am atma brahma, so am atma. The Upanishad is an enquiry into the Atman, the Self. That means you have four aspects, the Self has four aspects. What are the four aspects? Consciousness. It self appears as the waker and the waking word.consciousness itself appears as the dreamer. And the deep sleep world. Everything is resolved there in deep sleep. We experience everything as individual and total. So here I am an individual and here is the totality which I am experiencing. In other words, consciousness itself is the microcosm and the macrocosm