Deep in Dreams

Qiao An was sitting on the beach, enjoying the sea breeze, and a man wearing a straw hat was also enjoying it next to him. "It's so beautiful, just like in a dream." "What is a dream?" Qiao An turned around and asked. "Huh? It's just a series of false scenes you dreamed about after you fell asleep?" "Really? I seem to know what sleeping is and what dreaming is." "You're such an interesting person. This is the first time I've heard of someone who doesn't know what dreams are." "So, am I dreaming now?" The man wearing the straw hat suddenly froze. "Yes, haha, is this a dream? Is this a dream!" "Bang!" The Straw Hat exploded, and red things exploded all over Qiao An's body. He felt a stinging pain. He closed it and rubbed it gently, then opened it again. He woke up from the bed. What a strange dream. Qiao An smiled, got up and went out. He saw the neighbor at the opposite door lowering his head and tinkering with something. He said hello, and the neighbor responded happily. "What's wrong? Is there anything happy today?" "Happy? I have no shame, how do you know I'm happy?" The neighbor looked up and saw a dark void with nothing in it. Qiao An looked at it in confusion, yes, how did I see that I was happy? Oh! By the way, what is a face?