There was a Saint Eknath who lived in Mahaaraashtra state of India. Once 
    he was traveling with a group of his followers from Vaaraanasee to 
    Raameshwaram, from North to South. They were carrying the Holy River Gangaa 
    water to offer to Shiv.
    
    As they headed on foot to Raameshwaram, they passed through a dense 
    forest. The pathway was narrow and Eknath became separated from his 
    followers as they could not keep up with him. When he saw nobody behind him, 
    he decided to stop and wait for them. So he sat down under a tree. It was 
    very hot. In the meantime he spotted a donkey to be dying of thirst. Eknath 
    was very sympathetic to him. He trieds to search for some water in the area 
    but could not find any.
    
    He thought and thought, what should he do. The only water he had that 
    Holy water to be offered to God, this donkey was dying with thirst. Should 
    he keep this water for God, or give to this dying donkey? He did not take 
    much time to think, he got up, took the Holy water pitcher and pour some 
    water in his throat. The donkey was so thirsty that he drank all water, to 
    the last drop.
    
    At the same time his followers arrived there. They saw him giving Holy 
    water to a donkey, they asked him angrily - What did you do Eknath? This was 
    the Holy water. We were carrying it to offer it to God and you gave it to a 
    donkey. Now our trip is wasted. What we will offer to Shiv?" The saint 
    smiled and said - "A true human being cannot bear to see another living 
    being dying of thirst when he has water, whether it is ordinary or Holy. 
    This offering to save the donkey's life is far greater than any kind of 
    offering to any God.