i just found this game for PS1 in which the only objective is to navigate a dream world. it's even based on a dream journal.
it's called LSD: Dream Emulator.
i've been playing it a bit and it's incredibly bizarre. below is a video of some of the strange scenery in the game (skip to around 2 min for gameplay)


i guess wikipedia can explain far better than i: http://en.wikipedia.org/wiki/LSD_(video_game)


if you would like to play it and need help getting it for computer please PM me