1, which means all your troubles are your own. You have to be indifferent. If you don't care so much about some things, you won't have a lot of troubles, life will be much easier and you will be much happier.

Don't get entangled in things, be open-minded, calm down and take a step back.

3, that is, all troubles are caused by yourself, don't think about how there will be troubles.

4. For example, if you lose an eraser, optimists may try to cheer themselves up with the old one instead of the new one. Obsessed people want to throw away an eraser, which is really useless. This is asking for trouble.

As for the latter part, all troubles are actually asking for trouble. Objectively speaking, "worry" exists forever. When you notice him, he comes into your life. When you can't face your troubles and can't solve them, he will fill your life. So, all my troubles are because I didn't face and solve them correctly. Causal cycle, troubles come because of you, and they will go because of you.