Ahimsa is one of the rules
of ashtanga yoga.
The word ahimsa means non-harming. This means trying
not to harm, as possible, any living being in deeds,
words, thoughts, or emotions.
This also includes the principles
of ethically correct
nutrition and, which is no less important,
getting rid of coarse
emotions, which are the result of ill thoughts
and often lead to rude words and actions.
One can make ethical mistakes,
including crimes, as a result of either ignorance,
lack of understanding of the universal order and of
one’s own place and role in it, or out of indulging
in the emotions of spite, condemnation, resentment,
anxiety, fear, etc., which are vicious
manifestations of the lower self.