The Legend of Ganesha and Muruga and the Mango

Ganesha's wisdom and discrimination trump Murugan's speed and power in this story.

Image of Satguru Sivaya Subramuniyaswami
When guests come, they must be given hospitality, at least a mat to sit on and a glass of water to drink. These are obligatory gifts. You must never leave your guest standing, and you must never leave your guest thirsty.
—Gurudeva