St. Patrick, Druid worship of wells and baptism

And he came to the territory of Corcu Temne to the well of Sine, where he baptized many thousands of men, and founded three churches.

And he came to the well of Findmag, which is called Sian, because he had been told that the druids honoured the well and offered gifts to it as to a god. The well was of square shape and the mouth of the well was covered with a square stone (and water flew over the stone, that is through ducts closed with cement) like a regal trail ( ?), and the infidels said that some wise man had made for himself a shrine in the water under the stone to bleach his bones perpetually because he feared the burning by fire ; and they worshipped the well as a god.

And Patrick was told the reason for its worship, and he had the zeal of God for the living God, and said: 'It is not true what you say that it was the king of the waters' (for this is the name they gave the well: 'king of the waters').

And the druids and the pagans of that region and a very large crowd gathered together at the well and Patrick said to them: 'Lift the stone; let us see what is under it, whether bones or not, for I am telling you: under it there are not the bones of a man, but—so I believe—some gold and silver from your wicked sacrifices leaks through the cementing of the stones'; and they were unable to lift the stone.

And Patrick and his servants blessed the stone, and Patrick said to the crowd: 'Stay away some distance for a little while, so that you may see the power of my God who dwells in heaven'; and he stretched out his hands and lifted the stone from the mouth of the well and put it to the other side of the mouth of the well, and (there) it is for ever.  [still at the time of this telling...]

And they found nothing in the well but only water.

And there sat a man at a distance beside the stone which the holy man had rooted (in the ground), and Patrick blessed him; his name was Caeta or Cata. And Patrick baptized him and said to him: 'Thy seed will be blessed for ever.' [fragmented tradition?...]
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