From the publisher:

In Green Lantern: WillWorld, an inexperienced Hal Jordan must undergo a surreal right of passage in order to fully understand and master his power ring. Waking up on a strange hallucinatory world with no recollection of making a journey, Green Lantern attempts to decipher the insanity around him while instilling justice in a mad existence. Dealing with a senseless reality, Hal is forced to learn how to focus his will, thus accessing the true, unbridled power of his ring. Featuring strikingly beautiful artwork, this book reveals how Hal Jordan transformed himself from a novice hero to a revered legend.