Letting go of attachment is a very important Buddhist principle. So the practice of eating only what is given to you works within that, especially in a Buddhist country where living simply is not only seen as a good in itself but is something that many people do for at least a part of their lives.

Giving from the heart is another basic principle. There's a whole doctrine surrounding gracious giving -- all charitable acts are good, but particularly when you're giving away more than your excess or discards. This is also, incidentally, one of the corporal works of mercy in Catholicism (prayer, fasting and almsgiving).

I'm always intrigued by the commonalities (similar to but not the same as your made up word) between religions, which so often can be found at the highest level of idealism even if not in practice.

Peace.

~ ~ ~
All meetings end in separation
All acquisition ends in dispersion
All life ends in death
- The Buddha

|\_/|
='_'=

Every hundred years, all new people