>and various types of genius musical artistic etc. but since
>we are talking about knowledge of ourselves we understand that
>art, music etc. are a vital part of knowledge right?

Yep. Emotions, sensation, sexuality, reproduction, and creativity...these are all related to connecting to our innermost selves and others. The more we are able to connect with this the stronger is the sense of self-worth and self-love. We become healthier psychologically, more resilient and able to deal with adversity.