This quote means that animation is not about making drawings that are brought to life, but rather about creating movement and action through drawing. Animation is an art form in which an illustrator produces a series of drawings to depict an action or story, such as a chase scene or a conversation. Each of the drawings must be drawn in a slightly different position so that when they are played in sequence, they appear to move or have motion. The art is in the illustration of the motion, not the literal movement of the drawings.