subliminal messages? what is my brain trying to tell me?

I've been having super trippy dreams lately:

Example #1: I ordered a tarantula online and went to the post office with my little sister to pick it up when it arrived. It came in a ziploc baggie and I told Jennifer to hang onto it while I drove. She doesn't listen to directions well because she threw it in the back seat and it crawled out of the baggie. So we screamed and in a panic just left the tarantula in the car! Locked up. For months. Until it eventually starved or suffocated to death.

Example #2: I was riding in a jeep and we pulled up to a stop where there was a train stopped across the tracks in front of us. Then in front of that train, another train was effing chugging down a hill perpendicularly to the other train. It was trucking at the speed of lightening! And there was no where for us to go. And right before it slammed into us, completely annihilating us, the track shot straight up and barely avoided us! I got that feeling that you get when you're on a roller coaster and you think you're too tall to go into the tunnel and then you barely make it, but your brain still thinks you narrowly escaped death.

Example #3: I was swimming in my aunt's dining room at thanksgiving dinner. And then a man with curly blond hair flirted with me and swam underneath me and I got really embarrassed. Then curly kissed me. My boyfriend swam past at that exact moment and was all mad, "If you really loved me, you wouldn't be letting that loser swim underneath you!" And I said, "Don't be mad. I didn't want him to kiss me!" But then my boyfriend did the mad sigh and swam away to one of those shiny, silver ladders and got out of the pool/dining room.

What is going on here?! Maybe I'm spending too much time alone, which reminds me of a passage from the book I'm reading. A Fraction of the Whole by Steve Toltz.

"I have too much free time. Free time makes people think; thinking makes people morbidly self-absorbed; and unless you are watertight and flawless, excessive self-absorption leads to depression. That's why depressing is the number-two disease in the world, behind Internet porn eyestrain."

Haha I like that. But back to my dreams, I just wish my imagination during the daytime was as vivid. I think I'd have much more fun.