A motif that is inserted near the beginning and then assumes a new meaning later

Assumption is a motive that is inserted near the beginning and then assume new meaning later.

Explanation:

An assumption is a situation where we assume something later on the assumption may not be true. Doing assumption may not be correct always if we try to assume someone's feeling and stop communicating with them, it may lead to misunderstanding. As a result it may lead to fall in our self- confidence as well as it may lead to depression. We should always try to make the difference between reality and assumptions.

What it's saying is that colored pieces of canvases is a piece of art

Perspective is important because it enabled the 3 dimensional world to be translated into the 2d world of the picture plane. this had an immediate impact on the representation of reality in art and design.