Answer: Emotions are emotions. The reason for them can be both egoistic and altruistic; it doesn’t matter. I can enjoy something good or something bad.
You can measure different emotional parameters, but not spiritual parameters. In any case, whether the reason for the emotion is positive or negative will not be understood. Psychologists have also reached the conclusion that laughter and tears are in fact felt almost the same way by the body.
From the Kabbalah Lesson in Russian 8/21/16