I hardly ever remember my dreams but do sometimes when I have a good streak going. Is this because of abstaining or just something that I happened to recall around the same time. I am not talking about wet dreams, just dreams in general.
I started remembering my dreams more often after having read "dream's interpretation" by Freud. Anyway the more you try to remember them, the more you will be able to remember. It's just training. I saw also that somehow during my day sometimes i got "flashes" about my dream and i suddendly realize what my dream was about.
I noticed that too. The brain is more fresh and vitalised. So it finds it easier to function during dreaming when the rest of the body is sleeping. It has more power to go against the wave of sleepiness imposed by the body. And so when is memory the best, when you have emotions and are energised - its the same thing, energy = vitality = memory/better brain function.