Life after death
The theory implies that death simply does not exist. It is an illusion which arises in the minds of people. It exists because people identify themselves with their body. They believe that the body is going to perish, sooner or later, thinking their consciousness will disappear too.
That is goddamn near verbatim from a Family Guy episode where Stewie and Brian are in the hash bar in Amsterdam.
Diogenes of Sinope: "It is not that I am mad, it is only that my head is different from yours."
Arnold Judas Rimmer, BSC, SSC: "Better dead than smeg."
Arnold Judas Rimmer, BSC, SSC: "Better dead than smeg."