Compassion is a verb.

When your mind is liberated your heart floods with compassion: compassion for yourself, for having undergone countless sufferings because because you were not yet able to relieve yourself of false views, hatred, ignorance, and anger; and compassion for others because they do not yet see and are still imprisoned by false views, hatred, and ignorance and continue to create suffering for themselves and others.

Shallow understanding accompanies shallow compassion. Great understanding goes with great compassion.