Insanity can be localized to particular parts of the brain. You may be perfectly rational when doing mathematics, yet become quite mad when religion or relationships are involved. This is because we divide our minds into insulated departments which we do not permit to interact logically on each other. We divide our lives into idea-tight compartments, which we believe is for our own safety, blinding ourselves to the contradictions and evils that permeate our existence. Consequently, the so-called "aspects" of our lives are completely independent dreamworlds.
This does not mean we should simply accept all the compartments as an interacting whole. Two wrongs do not make a right, let alone countless wrongs. I read somewhere that "the higher philosophy is so wisely balanced and beautifully integrated that it does not disdain any of the ways of knowing, but uses each in its proper place." Such thinking is fatal, as it avoids the dreaded task of demolition. There is no easy solution to our problems. We must destroy all the compartments of the mind, and start our education again. The so-called "ways of knowing" are hindrances, not stepping stones. If you want to become popular and revered as a sage, then by all means talk of integration. But if you want immortality, then you will do what is difficult: you will not speak of stages, but of truth.