Let’s consider for a moment several bits of myth and several bits of lore, and how mythic history interweaves with how things work in the craft.
The general starting point is the often misunderstood or misrepresented concept of witch-blood. I’m going to start from a mythic understanding here, with the warning that confusing myth and science can be damaging to one’s mental processes. Work with me here.
Starting with the premise that all who work the craft have witch-blood, that all witches are of the blood, you might say. Now, those with witch-blood have the Sight. The Sight, as folktales and folklore and myth and lore will tell you, is the ability to see what’s truly there, to see through glamour and see the true form of those who have assumed another shape, shapeshifters if you will, and other such things where the average observer doesn’t see what’s really there. People tend to see what they expect to see. The Sight shows otherwise.
Now there’s lore, a myth, of the Founders. I won’t go into it here, but the witch-blood comes from the Founders, and to them from the Daughters, and to them from the Watchers. And through the Ninth Mother to those with that witch-blood. So that’s the start of it.
So, the Sight, True Sight, being that which, in Celtic folktales, allows those with it to see through the glamour of the Fey. Now, if the witch-blood gives the Sight, and that blood comes from the Blood of the Watchers, the Sight comes from their blood. Now if the Sight is the seeing through the glamour of the Fey, it has power over their glamour. It would make sense that that which is greater trumps that which is lesser, so the witch-blood must be greater than the glamour of the Fey.
Now, consider the connection of the Fey to burial mounds and corpse roads, and other bits and pieces, and what this and other things imply. Now one group of the Fey are of interest here, at least in Ireland, which is the location I want to focus on here, the Sidhe.
Now Sidhe did not indicate a people originally, it means mound, as in a burial mound. And the stories are of them living in Hollow Hills. I’ll leave the connection between the two to you.
Now it was Manannán, son of Lir, that great sorcerer and shapeshifter, who was powerful in glamour among many other things, raised the Veil that separated Ireland into that above and that below, and the Tuatha De Danann went into the Hollow Hills. This was when it became obvious the Milesians, who myth says became the later Irish, would defeat the Tuatha. It’s not a huge leap to consider the possibility that the Tuatha are the Sidhe.
Note Manannán’s shapeshifting and glamour, and other abilities, this might be important.
Now, the Tuatha De Danann are often described as very tall, giants if you will, as were the Fir Bolg. The Fir Bolg were the people who living in Ireland when the Tuatha invaded, and the two fought for some time until the Tuatha ended up victors. Some descriptions, however, show the De Danann being a sect or offshoot of the Fir Bolg.
Consider, then, the Nephilim. “There were giants in the earth in those days; and also after that, when the sons of God came in unto the daughters of men, and they bare children to them, the same became mighty men which were of old, men of renown.” Or, “The Nephilim were on the earth in those days, and also afterward, when the sons of God came in to the daughters of men, and they bore children to them. These were the mighty men that were of old, the men of renown.” It is not a stretch to link the descriptions of the Nephilim, the children of the Watchers and the Daughters, with the Fir Bold and De Danann. Other tales around the world similarly fit this parallel.
Now if Manannán’s powers, most of which are later seen in witch trial accounts and folktales of witches, and in various cultures around the world including modern trad craft, came from his bloodline, and his people, his blood, comes from the Nephilim, and hence from the Watchers, and if those are the same powers that witches possess, consider again the Sight, and who the Fey are.
Is it impossible that the Fey, especially the Sidhe, are the Mighty Dead, those of Watcher descent, of the witch-blood, who have passed beyond the Veil? And this Veil being the same that separates the two Irelands in the story of the descent of the Tuatha De Danann into the Hollow Hills?
Now, those living can see through the glamour of those who have passed if this is the case, and the blood is the source of Sight as we said, and also of the glamour and shapeshifting and other abilities the tales ascribe to Manannán and later the Fey and to witches.
Now blood is iron and blood is life. The dead have no blood, as we all know, as they have died, hence they have in much of the lore an aversion to iron, which is, as we said, of the blood. This is the reason it runs red.
So the power of the Fey is the result of blood no longer there, but for the power of a witch, the blood is still there. So the blood has power over the dead who have no blood, as the Sight of the witch overcomes the glamour of the Fey.
So the blood is the difference. The witch-blood. If you get my meaning.