Myst 4 Dream logic

Has anyone tried or heard the game MYST 4 :Revelation.
Theres a part what is quite detailed about the realm of dreams and is really good. Its states that there is so many dreams that we would be crushed if it was not that we were in are sub-consuicous and that we are visatours to the realm of dreams. It also states that we can communicate to each other in dreams and even our lost ones but to do this one need a guide because they can withstand the pressure. There is also something what states that white is the purist colour and that if we make the colour white in our dreams we can commuinicate to our ansestours(i can spel).
If one sees that game it is a good riddle and puzzle game and has a big section near to the end about dreams.