what's the point of dreams in our lives?

Yellowstone National Park, Wyoming

So the long weekend has ended but I kinda wish it was longer. I look at the list of things I have to do and subsequently more to come, I predict that I am going to be busy till the semester ends. It's already week5! =[ Recess weeeeek, you are here soon!

Yesterday night I had a dream that was really happy. I was so happy in the dream in ways that its hard to describe. But its something I felt before...such that when I woke up, I can't help but became really upset for the sudden burst of bubble. Like a kid realizing that Christmas is over. I was so annoyed with myself for such an aspect to the subconscious retrospection of myself and I can't help but became slightly disappointed. So disappointed that for 30min till I have to wake up for school, I kept asking God why I had such a dream.
Is my subconscious form not agreeing with the convictions I've built up to protect myself?

According to the old uncle among my kaki from Korean class, I don't have to care about what is the 'subconscious' because its not what I want. hmm, what if all along its all fake? What if I'm just lying to myself without knowing that I am?
-by the way, me and the other girl call him uncle sometimes as he is 4years older than the two of us. Old people requires certain respect and form of address... haha kidding-

Maybe I should ask a psych major about this.