Simply, because they occur.
Things that could be attributed to modern medicine, or chance, or luck, but that really could not have occurred without phenomena. They happen all the time.
I don't see them, not most of the time. I rarely even hear about them.
Because we are all so caught up in the mundane, or the past, or the future.
But tonight I was part of one. The miraculous birth of a baby girl less than two pounds. God saved her life and the mother's, seconds from danger.
Life triumphed and God has heard.
Simply, we're all the miracle, caught up in grace because it bears us like a child, saving our lives and making us strong.