Time is up, find the NPC above to interpret dreams. Nightmares are not edible. Ji Meng got random things, especially BUFF props, very good things that can be traded, and golden pigs.
If you have had five nightmares, you need to prepare things to ward off evil spirits (according to the level, prepare: the charm of zombie mushrooms (10-30), the charm of zombie monkeys (3 1-50), the charm of zombies (5 1-70), and the charm of zombie mushroom kings (70)