Be grateful even on hard days.

Gratitude on a hard day has to stay small or it turns into a demand. Nobody can be thankful for their circumstances while standing inside them, and being asked to try is just another weight.

So keep the unit tiny. The bus arrived as you reached the stop. Somebody let you go first. The dog was delighted to see you, having no information about anything. That is not a philosophy. It is noticing that not every single thing today was against you.