The reason is that I had a dream.
In my dream, I dreamed that there was a hot topic on Weibo on my mobile phone called #PP#. I thought it was just an ordinary chat and interaction topic, so I never clicked on it. But after I woke up, I gradually forgot about it and regarded this as a real thing, but in fact, this topic has never been discussed in real life.
Until one day I had a dream within a dream, and then this dream put on all my dreams.
It started when I started to notice that I was dreaming.
Purpose: Anti-school violence