What is the main conflict in The Eagle's Gift by Carlos Castaneda?

The Eagle's Gift by Carlos Castaneda describes the anthropologist/apprentice sorcerer's trials dealing with memories that gradually emerge from his mind's blanked-out "second awareness," the facility by which sorcerers deal with otherworldly as opposed to everyday phenomena.Carlos learns and shares much about how "the Eagle," a spiritual entity, has over two generations recruited "impeccable" warriors and trained them according to a meticulous "Rule."