These are the nemeses of our spiritual cultivation: Worries they narrow our perspectives; Resentments they provoke hostility; Griefs they obstruct our advancement; Angerit invites enemies.
忧则天地皆窄， 怨则到处为仇， 哀则束缚自己， 怒则大敌当头， 此乃心灵大敌 。
– Master Jun Hong Lu, Words of Wisdom Volume 1
