We need pets, or at the least reminders of a more natural existence, close at hand to keep us in touch with the real and natural world. (petbusiness.com)
Furthermore, the elaborate patterns of culture connected with birth, initiation, courtship, marriage, illness, and death all express responses to the insistent demands of natural existence in particular circumstances of space and time. (religion-online.org)
Our fulfillment as human beings begins by our embarking upon a journey into the unknown future opened up by the revelatory promise that pulls us away from the familiarity of a purely natural existence. (religion-online.org)