Tether

I think I know a way to be
Except I always get it wrong;
I live my life and hum along
Until I strike insanity
And then it all comes back to me
Like the lyrics of a song
Half-forgot until some strong
Occasion jogs my memory.
Then I recall how to devour
Each moment as it passes by
And live each day in joy and hope--
But then the passing of an hour
Relaxes me, and, sighing, I
Let go my hold upon the rope.