Challenges cannot possibly be good or bad. Challenges are simply challenges.

Don Juan assured me that in order to accomplish the feat of making myself miserable I had to work in the most intense fashion, and that it was absurd. I had now realized I could work just the same in making myself complete and strong. "The trick is in what one emphasizes," he said. "We either make ourselves miserable, or we make ourselves strong. The amount of work is the same."

Things are only real after one has learned to agree on their realness. What took place this evening, for instance, cannot possibly be real to you, because no one could agree with you about it. 'Do you mean that you didn't see what happened?'. Of course I did. But I don't count. I am the one who's lying to you, remember?

... the daily world exists because we know how to hold its images; consequently, if one drops the attention needed to maintain those images, the world collapses

That's your doing. Now in order to affect that doing I am going to recommend that you learn another doing... It may hook you to another doing and then you may realize that both doings are lies, unreal, and that to hinge yourself to either one is a waste of time, because the only thing that is real is the being in you that is going to die. To arrive at that being is the note-doing of the self

One day I found out that personal history was no longer necessary for me and, like drinking, I dropped it... Little by little you must create a fog around yourself; you must erase everything around you until nothing can be taken for granted, until nothing is any longer for sure, or real. Your problem now is that you're too real. Your endeavors are too real, your moods are too real. Don't take things so for granted. You must begin to erase yourself.

The world is such-and-such or so-and-so only because we tell ourselves that that is the way it is.