Human nature, and the rate of learning.
Let's say I believe it is my destiny to make sure all humanity evolves to become enlightened and reach the next rung?
Let's also say a constraint is I disbelieve in humanity as an entire collective body can reach enlightenment by itself - and therefore must be pulled, due to human base desires.
Knowing this, how can I accomplish it? I have theories, but I don't want to pre-form the suggested solutions.