The poem "The Magical Earth" by Gulzar (from Green Poems, 2014) contains these lines (in the English translation by Pavan K. Varma):
There is something indeed in the earth of my garden
Is this earth magical?
The earth knows how to do magic![…]
A sherbet, or milk, or water
Anything may fall, it absorbs them all
How much water does it drink?!
It gulps down whatever you give
Be it from a jug or a bucket
Amazingly, its stomach never fills
I have heard that it can even hide a river inside!
The earth knows how to do magic!
What does it poetically mean that earth can hide a river inside? Better give a summary of the poetic non literal lines in the poem "The Magical Earth".