Lucids and Dreamscapes

People's dreams are actually self-contained universes of their own. The characters within these dream timelines can, if they spontaneously gain consciousness, create their own dream universes too. These dream worlds are called dreamscapes. Lucids are the people that have the ability to travel between dreamscapes at will. Someone can have a natural talent for dreamscape travel, but it takes extensive training to truly master it. Lucids can travel to any point in their dream's timeline, as well as any point within the dreamscapes of characters inside their dreamscape. Lucids can also will their own dreamscape timelines to change, which effects the memories of the non-lucid characters inside.