Every second that goes by will never be seen again.
Every moment that is lost, can never be reclaimed.
What do we do with our moments, not our lives, but our moments. That is what life consists of, moments. We don't really have a "lifetime", we only have the moment we live in and the memory of the past. We live with the hope that comes in Christ, the faith that comes from belief, but we must still only live in the moment. Even faith without works, without actions, is nothing.