Corrections in red.  Stylistics in blue.

John and George

John was a blind man [1].  He was unable to see anything. One day he was deperately trying [2] to cross a road. Another man [1], by the name of George, was standing nearby. John asked him to help him to cross the road. George was lame. He said to John, “Friend, I am lame. How can I help you!”

John replied, “Why not? I cannot see. But you have eyes to see. Through your eyes I see. I have legs. You can walk with the help of my legs. Let´s go to cross the road.” George agreed. They became friends and crossed the road.

They had walked a little. George saw a bag lying on the ground. Then George said to John, ”Please follow me.  There is a [3] bag lying on the ground.  Let´s take it.”

John helped George.  They both approached the place where the bag was lying. John took the bag,  and they both sat down near a tree.

John opened the bag, and saw there were lots of coins in the bag. “Oh!  For few days I will be happy and eat well,”  George said.  Immediately John replied, “George, you forgot me.  Actually I brought you here. That's how you obtained the bag.  Naturally we´ll share it.” 

George repented for a while.

Thereafter they lived happily.

[1]  They probably were men, not boys.  Their register of speech is too elevated and mature for boys.  Also, look at the picture you posted!

[2] As you know, "pillar to post" is an idiom meaning "from one place to another".  Plus you used the verb "running" which suggests that John was hurrying from place to place.  But John was blind.  For that reason, it is hard to imagine him running from pillar to post.  So I suggested another thing that John might have been doing: desperately trying to cross the road.

[3]  Use "one" when you mean "one", NOT "two", NOT "three" etc.  For example:  (a) I have a brother.  "Tengo un hermano." (b) "I have one brother."  "Tengo solo un hermano."  (Enfatiza que tengo solo uno, no dos, no tres, etc.)