This is the era after World Four “realization” being arriving in wrong destination, and on the other side World One being innocently smiling and playing, knowing nothing about the other side of the story, but present the opportunity to interact and inter-relate.
World Five is the outcome of the interaction between World Four that realized being arriving in a wrong destination, meeting and enjoying the presence of World One, the child with every simplicity and smiles, that make both communicate to each other, even though the child does not speak adult language, even though the life after this life is not speaking anymore in human language.