Ahimsa is the first yama(social code) and means ‘Non Violence’ towards any other person, animal or nature. Non violence in the form of not harming physically, verbally, or with unfriendly thoughts towards anyone. Ahimsa means non violence towards anything in nature so that all can live in peace. If this is not followed then bad consequences can follow further down the line, so we must all remember that everything is connected.
It can also mean that you should be kind to your self without critical judgment.