I found some of the ideas in Invoking Ireland much easier to express with these quotes and pictures. You can click them to see larger versions.
Shaman tells a story of the smoke of a turf fire, of turf itself, and of an inner prehistoric landscape experienced. Speaking of the sods he'd bring from the shed each night for his fire -- "They were older, I'd remind myself, than Ireland's oldest folktale," Moriarty tells us. "What that folktale was I didn't know, but how strange it was, crossing a yard at nightfall with a prehistoric landscape in a bag on my back." He goes on to tell how one night he sat by his smoking fire, and the reek of it worked a mystical intoxication on him, and he was transported to that ancient landscape. He found an ancient pair of boots there, and putting them on, he began a strange journey. There was a lake which "didn't mirror some things it should mirror. It didn't mirror a red horse on a ridge. It didn't mirror its own islands." He continued on, experiencing a wood stinking of death, and experiencing life as a tree being felled, until finally, "The two sides of the path came together. I entered thick darkness and I didn't see the house until, seeing an old man by the fire, I realized I'd already walked into it." Here, after a riddling conversation with the old man, the adventurer undergoes a sort of agony and death, until, "it death-rattled the life I'd been living, modern life, out of me."
More on John Moriarty --
I see that "Serious Sounds", John Moriarty's account of his youth, is available as an ebook for under $4 here at Diesel
YouTube has quite a few recordings of John lecturing and telling stories.
The Lilliput Press is responsible for publishing all John's books. A few things are discounted and their shipping costs are quite reasonable. They have just brought out a sort of anthology, called "A Moriarty Reader" which looks quite promising.
Another review of Invoking Ireland on Reality Sandwich.