If we practice long enough, we will go through all sorts of things.  And there’s no one answer, there’s no right answer.  Whatever we find that works to deepen and advance our practice is our upaya, is our skillful means.  And whatever works today may not work tomorrow or worked yesterday, but it worked today.  Nothing works all the time.  It’s like having one wrench one size, but not all bolts are the same size.  So that wrench will only work some times when the bolt is the right size.  It won’t work all the time.  It’s the same.  Nothing works forever, nothing works all the time.  So we’re in a constant state of learning and experimenting.