everything is Brahman, but this has to be realized; merely saying that you are Brahman cannot make you realize the truth. You ought to experience that state, rising above all sense of duality by freeing your mind from illusion. Your 'I' should no longer be the local, narrow individual 'I' but the universal, eternal and absolute 'I'. To realize this ineffable, perfect state, sadbana is necessary. Mind and its desires have to be conquered by concentration and purification

(Ramdas)