It is not that to comprehend Brahman, we have to follow step 1,2,3 and level 1,2,3. You are Brahman already. Only thing is negate wrong and erroneous notions that I am world, that I am doer, Iam enjoyer, Iam Body, Iam mind, Iam intellect,senses ego complex. After negation of all this by viveka,vairagya, what remains is Iam Brahman. Own this wisdom and enjoy the bliss infinite.