Philosophy/drugs have definitely inspired me to use my brain more, and as such I have found changes in the way I think, for the better and occasionally worse. Philosophy guides you to think logically, and question every single axiom of thought we move around on, and drugs similarly aid this by juxtaposing different states of consciousness besides one another.

I have periods when I see clearly, as in I just 'get' life, but all these 'knowing everything' sensations strike me as hallucinations, unless they can be properly translated to something more coherent, like 'self' knowledge etc.