Hence every here and there the traveller passes a whole series of such heaps by the side of the track.(63) In Northern Africa the usage is similar. Cairns are commonly erected on spots from which the devout pilgrim first discerns the shrine of a saint afar off; hence they are generally to be seen on the top of passes. For example, in Morocco, at the point of the road from Casablanca to Azemmour, where you first come in sight of the white city of the saint gleaming in the distance, there rises an enormous cairn of stones shaped like a pyramid several hundreds of feet high, and beyond it on both sides of the road there is a sort of avalanche of stones, either standing singly or arranged in little pyramids. Every pious Mohammedan whose eyes are gladdened by the blessed sight of the sacred town adds his stone to one of the piles or builds a little pile for himself.(64) (M16) Such a custom can hardly be explained as a precaution adopted against a dangerous influence supposed to emanate from the saint and to communicate itself even to people at a distance. On the contrary, it points rather to a desire of communion with the holy man than to a wish to keep him at bay. The mode of communion adopted, however strange it may seem to us, is apparently quite in harmony with the methods by which good Mohammedans in Northern Africa attempt to appropriate to themselves the blessed influence (_baraka_) which is supposed to radiate on all sides from the person of a living saint. “It is impossible to imagine,” we are told, “the extremity to which the belief in the blessed influence of saints is carried in North Africa. To form an exact idea of it you must see a great saint in the midst of the faithful. ‘The people fling themselves down on his path to kiss the skirt of his robe, to kiss his stirrup if he is on horseback, to kiss even his footprint if he is on foot. Those who are too far from him to be able to touch his hand touch him with their staff, or fling a stone at him which they have marked previously so as to be able to find it afterwards and to embrace it devoutly.’ ”(65) Thus through the channel of the stone or the stick, which has been in bodily contact with the living saint, his blessed influence flows to the devotee who has wielded the stick or hurled the stone. In like manner we may perhaps suppose that the man who adds a stone to a cairn in honour of a dead saint hopes to benefit by the saintly effluence which distils in a mysterious fashion through the stone to him.(66)