Most atheists and agnostics in America say that they have a clear purpose in their lives, but far fewer than the national average say that they are driven to have a clear purpose in their lives. Far fewer atheist and agnostics than Christians say that they are at peace in their lives. Why do these differences exist?
Read Article: Do Atheists & Agnostics Have Purpose & Meaning in Life?

For a long time, especially after I lost my faith, I felt that my life was somehow purposeless. Eventually it dawned on me that purpose was irrelevant. It is enough to keep learning, to keep stretching my mind, to exercise my creativity, to help others, and to try to preserve the planet for future generations. These are the things that are ultimately important to me, and it’s enough just to focus on them and do them as well as I can with the resources I have. If that qualifies as a “purpose” in life, then I have such a thing; if not, I don’t care.
I cannot comprehend the concept of inherited sin. My personal feeling is that by being born, we inherit a moral duty to our fellows. It is up to us to define that moral duty.
Christians seem to be unable or unwilling to process the concept of not having to live with a externally mandated purpose (in life). At least non-theists are able to create and live out their own self-conceived purpose(s). The religion driven types seem to thrive on imposed, and pointless, structure – rules with blinders. I’m suspicious of anyone that relies on any group (movement/cult) to provide them with their meaning in life. No need to think for yourself – it’s already been done for you.
If christians believe that is a better way to live then I feel sorry for THEM.