"Just as a mother would protect with her life her own son, her only son,
so one should cultivate an unbounded mind towards all beings, and loving-kindness towards all the world.
One should cultivate an unbounded mind, above and below and across, without obstruction, without enmity, without rivalry.
Standing, or going, or seated, or lying down, as long as one is free from drowsiness, one should practice this mindfulness.
This, they say, is the holy state here."
- Sutta Nipata