لا يُطلق وصف «اللاجسدي» بحق إلا على الخلاء، إذ لا يفعل ولا يُفعل فيه شيء. وبما أن النفس تفعل وتتأثر، فهي جسدية.

“The term "incorporeal" is properly applied only to the void, which cannot act or be acted on. Since the soul can act and be acted upon, it is corporeal.”Epicurus — Letters: Principles Doctrines, and Vatican Sayings Translated, with an Introd. and Notes, by Russel M. Geor. Indianapolis Merrill (1964)