the nature of knowledge, I am Consciousness," is egoism. "I am Brahman" is also egoism. True aspirants understand this ego. There is no need to say, "I am Brahman." The moment one says it he is separated from Self, as he has created duality. Instead of saying "I am Brahman" in words, imbibe it's meaning. Then you abide in Parabrahman. When one abides in the Self, without duality, it is called "Experience."