 Levinson suggests that icons have a powerful effect on individuals, particularly the "direct image" due to the "sheer ease and sensual satisfaction" of viewing it.Gunning attributes the human fascination with photographs with a sense of the relationship between photography and reality, though he claims that the "perceptual richness and nearly infinite detail" of the image itself is more significant than a knowledge of its indexicality.He cites Bazin's idea that photography has an "irrational power to bear away our faith."