Sometimes the dream world is more pleasant than real life because it's still a world where anything can happen. Because, sometimes reality just gets in the way of happiness. When that happens, being somewhere else isn't such a bad thing, if anything it's a welcome respite.
Sometimes you envy children because they are still allowed to get lost in that land of imagination, that land where they're still allowed to be secret agents or cowboys, where adulthood still resembles their favorite movies. They haven't yet swallowed the bitter pill of life, and forget rose-colored glasses, they have rose-colored eyes. Eyes that still see the potential for good that the world still has, rather than for what the world has turned into. They awaken with stars and dreams in their eyes, their biggest concern of the day being whether or not they'll find the free toy in their cereal box at breakfast and what is going to happen to their favorite characters on the next episode of their favorite cartoon. They get out of bed with sleep still in their eyes and enthusiasm for facing the new day that you grow envious of.
Each day is a new adventure and a fresh beginning. Somewhere along the way you forgot how to wake up with a smile on your face, your enthusiasm for life replaced by the security and comfort of routine. With adulthood and the trappings that come with it, you had let life take over... the promise of a new day had been broken.