There are generally 2 causes of the Morning Glory. 1. Full bladder. 2. Erotic dreams (without regular masturbation, Wet Dreams). Unfortunately we rarely get to remember our dreams, but those that we do remember, especially the ones that result in waking to lovely erections are generally the best. As I mentioned in my "Dreams" thread in the Masturbation forum, if you're really lucky you can get to experience 'Directed Dreaming', when you are in that state where you are neither awake nor asleep, but still dreaming & to actually be aware that you are dreaming & thus be capable of controlling the outcome of the dream. In such a situation, the "Morning Glory" is certainly not wasted.
i had wood this morning too, but i had to get to work, luckily it had subsided by the time i got there :/