"Question everything, even ourselves" is not so much about DISASSEMBLING our personalities, as it is about SURVEYING the landscape of our mind that is already there; identifying the Garden of thought and dreams, so that a communion of ideas can help us to partake of a greater Whole, the Great Mind that contains all minds, collectively. You MAY call it Akasha, or you MAY call it Cosmic, or some other wonderful name, like the Ancestors.
Frankly, I prefer, now, the Holographic Universe, which I am sorting out, presently. It is amazing that another mind can gift us with a new perspective, such that happens here on GHMB.
You should dissolve all discrimination of individuality and absorb all things into a harmonious oneness.
The virtue of a highly evolved being embraces all people and things and dispels the darkness which isolates them.
Hua Hu Ching-primary lesson.