• The eye can see color, but the eye cannot see the cause or source of color.
• The ear can hear sound, but the ear cannot hear the cause or source of sound.
• The fingers can sense touch, but the fingers cannot sense the cause or source of touch.
• The tongue can sense taste, but the tongue cannot sense the cause or source of taste.
• The nose can sense smell, but the nose cannot sense the cause or source of smell.