Answer:
This is rectangular, hollow and has a lid, and where you’ll find it you might wonder, it is just six feet under. What is it?
Hold the tail, while I fish for you.
who do you think you know but sometimes you don't
Through its wounds, water does run. It once held many but now has none. What is it?
Though blind as well, can lead the blind well.
Keep doing me to avoid lens dryness