Grace

What is grace? Is it f'real? Is it only possible after hitting rock bottom, spiritually or otherwise? Does it require something from us to trigger it, some sort of effort, or through exercise of will, or is it just a magical gift from a divine presence?

Is there a non-supernatural way to explain it in life's ebbs and flows?

Is it all about bettering ourselves, like the once savage Godric on True Blood?

Is it just as often thwarted or crashed as sustained, is grace fleeting or is true grace infinite once it arrives?

Does grace require humility?

Is it by nature "heavenly?"