self-referent (adjective)

1. The building was designed with a self-referent feature, where each room had a mirror that reflected the adjacent room.

2. In the Greek myth of Narcissus, his self-referent nature led to his downfall as he fell in love with his own reflection in a pool of water.

3. The movie had a self-referent character who constantly broke the fourth wall and spoke directly to the audience.

4. In the cartoon series, the lovable self-referent main character often made jokes about being in a cartoon and even interacted with the animator.