The Paradox of Contentment
Though a quick search wielded no reaffirmation of this, I seem to recall hearing, at one point, that day-dreams were merely the result of the mind spontaneously forcing itself into a much-needed moment of REM sleep. The basic logic of this idea, coupled with the many examples of my own previously experienced day-dreams (brief vivid dreams of falling and jolting back to consciousness in odd places, like school and church and so forth) seemed to naturally support this idea, and I subconsciously filed it under the "probable" file in my logged memory banks. Be it the case or not, I think there is something subconscious, related or unrelated, that maintains a sort of equilibrium in as many ways possible. For while REM sleep may be a conscious physical need of the mind (not that day-dreams are in any way ever consciously sought after), there are other needs we seldom allow ourselves to be aware of, that I believe the mind naturally claims, in small doses, from time to time.
Often, if one dwells primarily in one end of any particular mental paradox, the mind will compensate by forcing fragments of the other end of the paradox upon them, and often without conscious desire or acknowledgement. Consistent contentment and banality, for instance, will periodically find itself invaded upon by moments of discontent and consequential excitement…a moment not brought through external means, but brought as a direct result of an overwhelming amount of the aforementioned state of being. Like static energy, it will mount and mount until an appropriate discharge becomes available, at which point the energy will take advantage of the opportunity with or without consent from the consciousness, and explode upon the bearer as inevitably as a bolt of lightning in a thunder storm.
Conversely, a being overwhelmed with excitement and uncertainty will periodically find themselves invaded upon by peace and contentment, despite the daunting tasks that yet surround them. Further examples that the mind, like logic itself, demands balance over favorable opinions. That truth in its most basic form remains a fixed compass, forever pointing inwards in all directions.