T 2.1.10.8

But we may farther observe, that this satisfaction encreases, when any good approaches in such a manner that it is in one's own power to take or leave it, and there neither is any physical impediment, nor any very strong motive to hinder our enjoyment. As all men desire pleasure, nothing can be more probable, than its existence when there is no external obstacle to the producing it, and men perceive no danger in following their inclinations. In that case their imagination easily anticipates the satisfaction, and conveys the same joy, as if they were perswaded of its real and actual existence.