I dreamed that Sakyamuni Buddha and Amitabha Buddha were unhappy but didn't say anything. What does that mean?

This is your delusion, where you are delusional. Don't guess Buddha and Bodhisattva with your usual thoughts. This is an infinite mistake.

Have time to understand Buddhism! The lecture was given by Kong Jing, an old mage. Search in Baidu.

In my space, there is a free email address of 163 with a user name and password on it. You can download it by entering an email address and opening your inbox. It's written information.