Memory fragments will appear as cards to you. There is a large variety of memory fragments. As you go deeper into the maze and fight more dangerous creatures, you will find more powerful and rare memories.
Three random memory fragments can be merged in the Dark Lathe resulting in a random memory fragment increasing by one level. Three memory fragments of the same realm will create an orb. The realm, tier, and level of the memory fragments have a huge influence on the creation of orbs.