Imminent: "impending, verging on occurrence" as an imminent thunderstorm.
Eminent: "prominent, outstanding or standing out above others" as an "eminent peak" or an "eminent logician."
Immanent: 1) Bodily fluids and semi-fluids such as blood, lymph, or glandular secretions that excite a response; the fluids of the eye; 2) The comical, what is funny and anything that causes it; also, a mood.
Suggested Usage: An immanent evil is a pervasive evil fully integrated into humans, society, or some other system. A person might be guilty of an immanent affection for someone else, i.e. a purely mental, interior or subjective love that the affection's target might be unaware of. We all enjoy people possessed of an immanent light that illumines all the places they go.