And I do not matter. In a big scheme of the world, any one of us is replaceable and will not be missed if sick, dead or just unavailable.
But we can matter on a small scale. Our close one can miss us. We can help improve our team, our neighborhood, our family, friends.
However, in the end, when you are not available, everyone will move on eventually.
I think it is a freeing realization. No stress, it does not matter.