Hilm means being inclined to gentleness or mildness; this adjective describes a person who is quiet and peaceful, slow to anger, quick to forgive, and who is in control of their lower nature. It also encompasses good akhlaq because it embodies behavior like patience and tolerance in the face of unpleasant situations, keeping one's cool when provoked, and remaining dignified, serious and calm in response to distressing or unkind treatment. Hilm, along with humility, is one of the characteristics that most pleases God. In fact, these two dispositions are the source and origin of all other good character traits.
— Musa Kazim Gulcur, Good Character