The depth of mind.
Dreams are what existence would see if she looked in a mirror. They are an ever changing image representing the irrationality in life and how spontaneous it will continue to be as long as it persists. Dreams are a reminder of our mortality in their persistence to be forgotten, and a chance for us to reconcile with the fact that reality will never be more permanent than it's counterpart. Dreams are grounded in the real world just enough to give us hope that one day they may come true. Or in the case of nightmares, real enough for us to fear that they will. Dreaming is what happens when your subconscious gets to play with the controls, and dreams reveal many truths about yourself that you may try to hide. They are a way to look deeper inside and understand the motivations behind the actions of oneself and the actions of others. It is simultaneously a glimpse into utopia and into the darkest pits of hell. No one person is exempt from the catastrophic indignity that is life and no ones character survives that trauma without blemishes. Dreams show your inner most scars and reveal the ways you wish to heal them. They portray a true, broken past and an idea of the future that is as hopeful and optimistic as it is arguably unattainable.