What is the drunken dream in Time Has Changed?

It is said that drinking wine can forget everything, which is the ashes from time.

Source:

On the sixth day, I was shocked. Every year at this time, a man comes to me for a drink. His name is Huang. This man is very strange. He comes from the east every time. This habit has been maintained for many years. This year, he brought me a personal letter.

Huang: Not long ago, I met a man and gave me an altar of wine. She called it "drunkenness". After drinking, it can make you forget anything you have done before. I wonder why there is such wine. She said that one's biggest trouble is having a bad memory. If everything can be forgotten, every day in the future is a new beginning. And say how happy you are. This bottle of wine is for you. It seems that we each share a bowl.