Why do cats like to sit in the dark doing nothing and watching nothing?

This new cat I got last week is rly nice and he follows me 90% of the time and goes whereever I am but sometimes I go in the living room where the kitchen is and all the lights are closed at night and I open the lights...hes sitting in the open sitting down doing nothing with his eyes open for a while

I dont get why he does that

House is haunted

cats can see ghosts. Remember the movie Ghost with Patrick Swayze?

Cats are noctural animals.

They sleep during the day and hunt during the night.

He'll get used to your schedule in a week or two.

Evil cat most likely

Are your lights always on? That why you open and close them?

Cats are uhh special. They do their own thing

Cats are hunters by night, it's hunting/practicing hunting.

He just chillin man