Joanna Macy writes in her Shambhala Sun article Gratitude: Where Healing the Earth Begins:

We have received an inestimable gift. To be alive in this beautiful, self-organizing universe—to participate in the dance of life with senses to perceive it, lungs that breathe it, organs that draw nourishment from it—is a wonder beyond words. It is an extraordinary privilege to be accorded a human life, with self-reflexive consciousness that brings awareness of our own actions and the ability to make choices. It lets us choose to take part in the healing of our world…