Kindness is Not Free
Kindness is loving others. Kindness is loving yourself. It's giving selflessly, and not taking more than you need. Kindness is about seeing the hurt in someone and helping them heal it, instead of using it to keep them down. It is the reason you give your seat to the little old lady on the bus instead of pretending you don't see her. And it is what restores faith in our fellow man, when we think evil has taken over the world.
What more reason do you need than that to be kind? And kindness is free right? So why aren't we kind all of the time? It's because kindness is not free, it is something we give to one another. The famous saying is "you can't pour from an empty cup", you can't give what you don't have. Compassion and empathy come naturally to us, but the act of kindness doesn't always follow suit. And it is because we are running on empty.
We are so run down that we don't even have enough energy to give kindness to ourselves, let alone another human being. And when we give what we don't have enough of in the first place, we are resentful. Dropping your husband or child's lunch off to them when they forgot it is an act of kindness. However, if you are exhausted from burning the candle at both ends, you will resent them for taking what little energy you have left.
Practice showing kindness to yourself and you will have more to give to others. Allow yourself to have a day off, give yourself compliments in the mirror each morning, don't beat yourself up over mistakes, and schedule time to take care of you. When your cup is full, you are able to give freely, without guilt, worry or resentment.
The best way to be kind to others is to be kind to yourself.