Xiao Ming caught a dream in his sleep, but the tail of the dream escaped.
Meng's tail hid in the cat's tail, was frightened out by Xiao Ming's sneeze, and ran into the lake again. Xiao Ming turned into a fish and looked for it in the lake.
This time, he couldn't find the end of the dream and fell asleep due to sleepiness.
Purpose: Exploring the dream world
