Proverbs 15:32 Kabbalah

פּוֹרֵ֣עַ מ֭וּסָר מוֹאֵ֣ס נַפְשׁ֑וֹ וְשׁוֹמֵ֥עַ תּ֝וֹכַ֗חַת ק֣וֹנֶה לֵּֽב׃

He that refuseth correction despiseth his own soul; But he that hearkeneth to reproof getteth understanding.

Read kabbalistic (mystical) interpretation of Proverbs 15:32: and classical mystical sources.