40

The ancient followers of Zoroastrianism believed that at 40 you reached physical perfection.  That, when you died and went to heaven you were 40.  I had trouble with 30, more so with 40.  All I can think about are things like 40 being the rough age where reflexes slow, muscle mass starts to wane, eyesight starts to deteriorate.  I think of the unfulfilled goals, not unattainable, and the regrets.  Often I think, "what has God called me to do?"  Often I desire to make a difference.