There is a chair outside the front door; a place where I sit and contemplate whenever it is raining and I can't wander about without getting into full rain gear. Beside the chair is a stone with another stone placed on top of it, actually balanced on it, and I have been looking with wonder at the mosses and lichens growing on it. One of the lichens is a wonderful mustard color and the shapes it forms are rather like a coral reef; while the whole pattern of lichens and mosses on the stone is like a galaxy. These yellow lichens are about the size of a match head, never seeming to grow as large as the grayish ones. I would love to know how they came to be yellow. Only a very few stones in the garden are marked with this yellow fairy dust.