Call me an apologist, I don't care. I grew up in a VERY Catholic family, a Conservative one. I didn't throw out the baby (the values) with the bathwater (the religion). Values like "our strength lies in the community," "Have empathy and compassion for all people, especially your enemies," "Speak the truth, search for it," "Strive to fulfill your potential," "Dream of a better world; you are not your current circumstances," "be humble and kind," "have an innate respect for ALL human life, especially those you do not understand," "take care of the fringes of your society--the poor, the disadvantaged, the disabled, the elderly, the young, the hated, the ridiculed, the bullied"--just a few, made their way into my secular life. They are re-written in secular language, adapted to my search for truth, my convictions, and level of intelligence.
To deny the impact of religion on morality, both good and bad, is to live outside of the truth. It was Thomas Jefferson, who refers to a divine power in the "Declaration of Independence," and the ideas of divine and natural laws, that led to Dr. Martin Luther King, Jr. never losing hope, as he sat in a Birmingham, Alabama jail. Yes, I can point to Galileo, but I leave that to my fellow nonbelievers, because you are better informed than I.
To deny that art and politics have been shaped by believing in a deity, something higher than oneself, is to deny the facts surrounding man. This is a motivation--to see inherent worth in our lives because God loves us, to want to devote a piece of art to God, as a show of our appreciation of his creations, and worship him. I know, I know, apologist. But the truth is, the Sistine Chapel is a work of art inspired by religion, the Greek Columns of Washington, D.C. was a reference to the birthplace of Democracy--Greece. Both of those sentences are true, whether you like it or not.
That said, I want to share some of my favorite art in the religious sphere--namely, music. Why music? It connects most fully, as an art form, with my emotions.
The truth is, the whole world is yours to enjoy. I can listen to these songs, and be inspired, as an agnostic, because they were created by man, in deference to something larger than themselves, they talk about peace and hope and service and dreams, and I can replace God with Love or Zeus in the song, and still enjoy it, although not with the same fervor, or conviction, as a believer.