Alchemy, thing of memory

Once they opened, a light similar to purple appeared, but it wasn't exactly purple. it was something I couldn't describe, it's more interesting than that. It's like the culmination of several colors at the same time. I just can't describe it in any way. There were shelves of sheer black matter all around with glasses full of liquid. Some of them were green, some were purple and some were dark red, almost like blood. There was a pot in the middle of the room with several runes around the pot itself and on the metal. The smell inside was quite unpleasant. It was a combination of putrid and fresh, I don't know how else I can think of it. It makes me feel really bad inside.