What you still need to know is this: before a dream is realized, the Soul of the World tests everything that was learned along the way. It does not because it is evil, but so that we can, in addition to realizing our dreams, master the lessons we've learned as we've moved toward that dream. That's the point at which most people give up. It's the point at which, as we say in the language of the desert, one dies of thirst just when the palm trees have appeared on the horizon.
Treason is a blow that comes unexpectedly. If you know your heart well, it will never be able to do that to you. Because you'll know its dreams and wishes, and will know how to deal with them. You will never be able to escape from your heart. So it's better to listen to what it has to say. That way, you'll never have to fear an unanticipated blow.