The circumstantiality of this story suggests that it belongs to the extensive class of myths which are invented to explain ritual. For a myth is never so graphic and precise in its details as when it is a simple transcript of a ceremony which the author of the myth witnessed with his eyes. At all events, if it can be made probable that rites like those described in the Balder myth have been practised by Norsemen and by other European peoples, we shall be justified in inferring that the ritual gave birth to the myth, not the myth to the ritual. For while many cases can be shown in which a myth has been invented to explain a rite, it would be hard to point to a single case in which a myth has given rise to a rite. Ritual may be the parent of myth, but can never be its child.(652) The main incidents in the myth of Balder’s death are two; first, the pulling of the mistletoe, and second, the death and burning of the god. Now both these incidents appear to have formed parts of an annual ceremony once observed by Celts and Norsemen, probably also by Germans and Slavs. In most parts of Europe the peasants have been accustomed from time immemorial to kindle bonfires on certain days of the year, and to dance round them or leap over them. Customs of this kind can be traced back on historical evidence to the Middle Ages,(653) and their analogy to similar customs observed in antiquity goes with strong internal evidence to prove that their origin must be sought in a period long prior to the spread of Christianity. Indeed the earliest evidence of their observance in Northern Europe is furnished by the attempts made by Christian synods in the eighth century to put them down as heathenish rites.(654) Not uncommonly effigies are burned in these fires, or a pretence is made of burning a living person in them; and there are grounds for believing that anciently human beings were actually burned on these occasions. A brief review of the customs in question will bring out the traces of human sacrifice, and will serve at the same time to throw light on their meaning.(655)