Description
This immensely powerful sentence is from Brihadaranyak Upanishad and is one of the four Mahavakyas.
In the sentence, ‘Aham Brahmasmi,’ or I am Brahman (the Ultimate), the ‘I’ is that which is the One Witnessing Consciousness. This part within ourselves observes our consciousness, which is responsible for all our sensory activities. Standing at a distance, and shining through every act of thinking, feeling, etc. This part is in complete knowledge and command and nothing, absolutely nothing is beyond it. This Witness-Consciousness, being the same in all, is universal, and cannot be distinguished from Brahman, which is the Absolute.
Hence the essential ‘I’ should be the same as Brahman.