Whoever makes love grow boundless, and sets his mind for seeing the end of birth, his fetters are worn thin. If he loves even a single being, Good will follow. But the Noble One with compassionate heart for all mankind, generates abounding good.
I do not perceive even one other thing, O monks, that when undeveloped and uncultivated entails such great suffering as the mind. The mind when undeveloped and uncultivated entails great suffering.
Let the disciple cultivate love without measure towards all beings. Let him cultivate towards the whole world, above, below, around, a heart of love unstinted....For in all the world this state of heart is best.
Those which are produced from causes are not produced. they do not have an inherent nature of production. those which depend on causes are said to be empty; those who know emptiness are aware.
These teachings are like a raft, to be abandoned once you have crossed the flood. Since you should abandon even good states of mind generated by these teachings, How much more so should you abandon bad states of mind!