The chances of the meeting up of the sperm and egg that led to our existence were infinitesimally small.
We find ourselves on, as far as we know, the only planet in the universe capable of supporting human existence.
Despite the war, pestilence, and sheer bad luck that has killed hundreds of thousands of those sharing our time on earth, we are still here.
And in response to the utter miraculousness of our very existence we spend much of our lives feeling sorry for ourselves.
How ungrateful!