It's only when something is taken away that you realise how much you can take things for granted.
It reminds me of a saying that:-
“If you want to feel rich, just count all the things you have that money can’t buy”
Sometimes we are so busy in our lives that we do not take the time to stop and really appreciate what we have or can do.
Many years ago from reading "The Law of Attraction" I started a Gratitude book. At the end of the day I recognised at least three things that I was grateful for. If you've had a good day then it was quite easy but it's on the difficult, sad, frustrating days that it can take effort to turn your thoughts around. However by making this effort and naming the things you were grateful for allowed a more positive and appreciative perspective.
So however your day has been, just take a few minutes to identify things that you have in your life that "make you rich".