I read slave narratives, books like Bullwhip Days, Incidents in the Life of a Slave Girl. [The Root's chairman] Henry Louis Gates has an amazing documentary called Many Rivers to Cross - really, his whole writings; he's such a wealth of knowledge.
To reach beyond what you are you must ignore the rules and fashions of the day. Or perhaps better yet cast them way out in your peripheral vision where you can still see them but only as a vague reference point. This doesn’t mean that all the rules are gone. It might mean that you adopt a far tighter code of conduct to ensure the necessary level of intensity and adventure.