xviii.) are there more causes whereby it can be aroused.

Q.E.D.
PROP.XIV.

The mind can bring it about, that all bodily modifications or images of things may be referred to the idea of God.
Proof .-- There is no modification of the body, whereof the mind may not form some clear and distinct conception (V.iv.); wherefore it can bring it about, that they should all be referred to the idea of God (I.xv.).

Q.E.D.
PROP.XV.

He who clearly and distinctly understands himself and his emotions loves God, and so much the more in proportion as he more understands himself and his emotions.
Proof .-- He who clearly and distinctly understands himself and his emotions feels pleasure (III.