The lesson of generosity is taught with force and simplicity in the legend of Hafod Lwyddog, and the necessity for secrecy is quite abandoned. Again it is a shepherd, who dwelt at Cwm Dyli, and who went every summer to live in a cabin by the Green Lake (Llyn Glas) along with his fold. One morning on awaking from sleep he saw a good-looking damsel dressing an infant close by his side. She had very little in which to wrap the babe, so he threw her an old shirt of his own, and bade her place it about the child. She thanked him and departed. Every night thereafter the shepherd found a piece of silver placed in an old clog in his cabin. Years and years this good luck continued, and Meirig the shepherd became immensely wealthy. He married a lovely girl, and went to the Hafod Lwyddog to live. Whatever he undertook prospered--hence the name Hafod Lwyddog, for Lwydd means prosperity. The fairies paid nightly visits to the Hafod. No witch or evil sprite could harm this people, as Bendith y Mamau was poured down upon the family, and all their descendants.[60]