To dwell in this cave
One must keep an eye open
And One must be brave
If One cannot see
There exists only darkness.
What good would that be?
One gets derision
From binocular beings
For lack of vision
But mind, One does not,
Because One is all-seeing,
Yes, One sees the lot.
Self-portrait used with permission from 
(turns out a rhymeku is not an original concept although I had no concept of it myself)