In Revelation 9:5, this signifies to be darkened in the understanding, and drawn from seeing truth. (Apocalypse Revealed 427)

In Revelation 14:10, this signifies the love of self and the world and their derivative lusts, and from these, the conceit of their own intelligence. (Apocalypse Revealed 636)

(सन्दर्भ: Apocalypse Explained 9 [5])