Commentary for Proverbs 13:19

pleases the soul When a person’s desire comes to him it pleases his soul. Therefore, it is an abomination to a fool to turn away from evil because it pleases him to gratify his desire.

fulfilled Heb. נהיה, lit. is. Another explanation: a desire fulfilled The Holy One, blessed be He, desires that Israel do His will, and when His desire is fulfilled, it pleases Him. And it is the abomination of the wicked that they turn away from their evil to gratify their desire.