I once had a dream (warning- gets really trippy) where I was playing soccer at school, but the ball rolled down a cliff that I hat to climb a tree that was growing downwards. when I finished climbing, I found myself at an enormous river that was really shallow and clear, clear enough to see gigantic salmon swimming leisurely about. I grabbed my fishing rod (which I guess I pulled out of my ***) and started fishing. later, when the river magically warped to my backyard, I had a salmon on the line, and I pulled it in. but instead of a salmon, it was this weird hairy invasive species. I woke up when a whisker from said fish poked me in the cheek.
Don't ask, I have no idea how I dreamed this dream, or how I remember it so vividly. I can explain the river, though. it was on a dual survival episode I had watched that day.
Oh, and here is the earliest dream I remember (it always brings lulz)
so I was at this big multicolored house, and my parents were reading a book or cooking or whatever. then a giant talking shark showed up and said "yum, I'm hungry!" the shark then grabbed my dad, grabbed a pan, turned on the stove, and began cooking my father ("YEEOOOOWWWW!!!") I then put a bomb under the table, grabbed my parents (I was five...) and ran out of the house, which blew up three seconds later.
that is why I have never bothered with drugs, as when I fall asleep, I get legit acid trips with no ill side affects.