A wise woman who was travelling in the mountains found a precious stone in a stream. The next day she met another traveller who was hungry and when the wise woman opened her bag to share her food the traveller saw the stone and asked her to give it to him.
She did so without hesitation.
The traveller left rejoicing in his good fortune because he knew the stone was worth enough to give him security for a lifetime. But a few days later he came back to return the stone to the old woman.
"I have been thinking" he said,
"I know how valuable the stone is but I would like to give it back in the hope you can give me something even more precious.
Give me what you have within you that enabled you to give me the stone."