Definition of vision:
a vivid mental image; "he had a vision of his own death"
the ability to see; the visual faculty
the perceptual experience of seeing; "the runners emerged from the trees into his clear vision"; "he had a visual sensation of intense light"
the formation of a mental image of something that is not perceived as real and is not present to the senses; "popular imagination created a world of demons"; "imagination reveals what the world could be"
a religious or mystical experience of a supernatural appearance; "he had a vision of the Virgin Mary"