  We show that a number of apparently separate extravagant Majorana's actions,
including those connected with his disappearance are united by the invariant of
behavior. It is based on "carrying into life" the principles of quantum theory.
We argue that the underlying motive force in the story of his disappearance
consisted in existential intention to overcome the fixed frame of personal
identity and dichotomy "life - death" and mimic breakthrough to plurality of
worlds.
