Basically, it's just a warning about eating cheese before bedtime....

Gypsy’s Trial
Sue served up a wonderful salad for tea last night, complete with a generous helping of my favourite cheese, Wensleydale with Cranberries. But later, after she had already gone up to bed, I noticed that there on the cheese dish, was just enough of the Wensleydale to make a sandwich. Now I know that it’s a little foolish to eat cheese at bedtime but that that little wedge called to me time and again, till at last I succumbed and made it into a late night snack.
By the time I climbed into bed, Sue was just laying down her book and turning out the light, and after saying our goodnights, I fell almost immediately into a fitfull sleep. Suddenly I found myself in a vast circular chamber, unlike anything I had ever seen or even imagined before. The walls, ceiling and floor were all made from the same shimmering opalescent material, but there were no joins or angles, everything flowed in curves like it had been moulded from a single sheet of material. Behind me I could see that there were semi-circular tiers, like a giant stairway. These too were made of the shimmering material, all the more unusual by the fact that there was no supporting structure, just the tiers, arranged in such a way that those who sat., or stood on them, could get a good view of the rest of the chamber that stretched before them.
I was standing on a raised dais, to both my left and right was another, both equal in size to mine, but ahead of me was one that was much larger, one that would give a commanding view of the whole chamber. These four podiums were arranged around a pool of crystal clear water that, while reflecting the shimmering of the walls, seemed to have a light source at its very heart that constantly danced. The motion of the water split the light into two or three continually changing pale rainbow colours which lit the surface from below. This dream was getting seriously weird and I was beginning to regret having that cranberry laden treat, and though I didn’t know it at that time, it was going to get far, far stranger yet…
Without warning, and in the blink of an eye, the tiers behind me were suddenly filled with horses, horses of all shapes and sizes. Some breeds I recognized immediately, there were shires, shetlands, warmbloods, even the odd fjord... Some of the other breeds escaped me, though I felt deep down that I should have recognized them. Among this crowd, was a lot of shuffling, mane tossing and snorting, but suddenly they quietened as one. On each side of the chamber, through doors I hadn’t before noticed, came a piebald mare. The one I to my left I half recognized, but the one to my right I knew immediately… It was Minstrel, a little mare I had cared for years ago, until she passed away. At that time she was continually lame, her legs giving her so much unbearable pain that we simply had no choice but to lay her to rest. Now though, she was fit and strong and as she mounted the right hand dais her coat glistened and reflected the light that played around the chamber. The mare on my left I thought I recognized as one that I had lost through the most pitiful of circumstances… Circumstances that I had hoped I would never have to live through again. As she drew closer and mounted the left hand dais, I could see that indeed it was her… Gypsy was back.
After what seemed like just a few seconds, I saw the head and shoulders of a magnificent golden palomino mare as she mounted the largest of the four columns that surrounded the pool… This was obviously someone rather special, for every horse in the place took up a respectful position, including the two pies that flanked me… So not wishing to appear disrespectful I lowered my head too, which was just as well, for this was no ordinary horse, no horse that mortal eyes will ever see, for this in reality was just one of the forms taken by Epona, goddess and carer for all creation’s horses.
The atmosphere in the chamber was electric... Every horse strained to see and hear Epona for they loved her as much as she loved them, and even though I wasn’t included, I could feel the affection that filled the room… Suddenly she spoke, addressing the crowd in a language that I too could understand; she told them that I was here to face charges drawn against me by Gypsy for failing to care for her during her time on Earth… My heart raced, I had never knowingly been cruel to any animal, let alone a horse... it was the last thing I would ever have done… Epona went on to state that I was to be defended by Minstrel… who would do her best to speak for me, although under horse law, I would of course get the chance to address this ‘court’ myself at any time, if I so wished.
Epona, now in her role as judge, gave Gypsy the signal to start her case, and the role of the pool now became obvious… as she spoke it showed the story of her life in perfect detail. We saw how she was born into a group that used her in trotting races on hard tarmac roads, we saw the large amounts of money she won for her owners, and we saw how the constant jarring damaged her hooves and legs till she could barely walk... then we saw and heard her owners plan to have her covered to produce another foal that would grow with it’s mother’s talents. There was a slight tremor in Gypsy’s voice as she recalled how she was mated with a stallion she neither knew, nor liked. All the time the pool showed her kicking and rearing as she tried to refuse him, but it was to no avail, her owner and other humans tied her so that the stallion could do his job.
Following that, she went on to tell how her foal started to grow inside her, till one day she was aware that it was no longer moving. We watched the pool as she tried to tell her owner of her worries but he ignored her until the day when he finally realized that all was not well… He knew at that time Gypsy was going to need expensive veterinary treatment to help her but he was having none of that, so the next time his family moved, he merely left her tied to a tree.. Gypsy’s next scene showed her a couple of years later, but by this time a wreck. She was permanently incontinent and in pain from her incomplete pregnancy. Some humans tried to help, but she reared and kicked as they approached… She had had enough; there was no way any human was getting near her again… Then the picture changed again, and I recognized myself holding her by a lead rope, as she stood quietly, having been tranquilised beforehand. Then I saw my vet injecting her, and watched her slip into the arms of Epona, where pain and suffering for horses simply don’t exist… Then I saw myself drop her lead rope and vanish around the corner of the barn… “There you see...” her voice boomed... “He didn’t even have the decency to bury my body, just left me where I fell… “