Excuse me, what does it mean to forget Sichuan after the rain clears?

To forget Sichuan is to drink the spring water and forget all the joys and sorrows of previous lives (like Meng Po Tang! Ha ha! ), think that the rain falls and forgetting Sichuan is the source of new life, which continuously supplies water for forgetting Sichuan Spring. Hey! Maybe the rain also wants to be reincarnated! Ha ha! Joke!