I'm not sure about you others but my frequency of daydreaming is directly connected to periods of depression or struggle with an unhappy situation. Conversely, the more stable or happy I am the less I daydream. The same goes for the scenarios I daydream about. They have a strong connection to the scenarios playing out in my life.

(Someone above mentioned getting absorbed enough to forget things like food on a hot stove. I too experience this and set myself timers and other reminders about such things)