Mental Nothingness

Unconsciousness, Non-consciousness
Hypnosis, Trance
Amnesia, Confusion
Blindness, Deafness
Brain-damage, Coma
Dementia, Decomposition
Depression, Schizophrenia
Attention deficit disorder
Boredom, Ennui
Abandonment, Rejection
Waiting, Pausing
Zen, Meditation