Lent is a call to weep for what we could have been and are not. Lent is not about penance. Lent is about becoming, doing and changing whatever it is that is blocking the fullness of life in us right now.
Catholics have Lent as a yearly remedy to our all-you-can-eat attitudes, one worth sharing with everyone else. If the call to "repent and believe in the gospel" isn't your speed, how about, "Stop eating the world."