Little Fly

Little Fly

Little Fly
Thy summers play,
My thoughtless hand
Has brush'd away.

Am not I
A fly like thee?
Or art not thou
A man like me?

For I dance
And drink & sing;
Till some blind hand
Shall brush my wing.

If thought is life
And strength & breath;
And the want
Of thought is death;

Then am I
A happy fly,
If I live,
Or if I die.

- by William Blake

A poem I read when I was 12. The lines come to my mind, whenever I'm confused.