Numberless customs in Wales which appear to be meaningless, to people of average culture, are in truth replete with meaning. However trivial they may seem, they are very seldom the offspring of mere fooling. The student of comparative folk-lore is often able to trace their origin with surprising distinctness, and to evolve from them a significance before unsuspected. In many cases these quaint old customs are traced to the primeval mythology. Others are clearly seen to be of Druidical origin. Many spring from the rites and observances of the Roman Catholic Church in the early days of Christianity on Welsh soil--where, as is now generally conceded, the Gospel was first preached in Great Britain. Some embody historical traditions; and some are the outgrowth of peculiar states of society in medieval times. Directly or indirectly, they are all associated with superstition, though in many instances they have quite lost any superstitious character in our day.