Reality? Dream? I Can't Tell the Difference!

"Doctor, I'm suffering from mental illness. I have a very real dream every night. In the dream, the unspeakable god rules mankind, evil spirits are everywhere in the world, and mankind can gain the ability to bless by acting as a slave to the tiger. And the person in the dream told me..." Doctor: "Tell you what?" "They say that there is reality over there, and everything here, including you, is just a virtual dream that I imagined." Li Mai looked at the doctor who was wearing a white coat but had tentacles and compound eyes on his head. He looked as ferocious as a humanoid cockroach and said in a serious tone.