The Interpretation of Dream

Eversince I was having these most peculiar dreams, I get attracted to the subject of dream. I had these weird three different dreams for the late 3 years, which was very odd if you visualize..

1. I swam with a whale, and I tell you it was a gigantic whale just like in the Pinocchio movie. In my dream scene, I was talking to this whale about the sea kingdom (the immortal turtle, the cute little blow fish, shark the killer, etc.) and it just flow just like I'm the fish language expert. And the most remarkable part is when I saw my leg, then I found out that instead of white smooth human leg, I have the Mermaid tail…I'm the Little Mermaid
2. I was in the roof top of a building, it was like 200 metres from the ground, I was trying to gather round my gumption to jump (but I'm sure I wasn't trying for suicide)…..then I jumped….guess what??? I was flying..like a supergirl without any colourful outfit, I flew through dessert, NY City, and many more…And till now, I still remember the feeling of FLYING
3. The last dream is very odd: i met this guy, a guy that I've been in love with for ages...and then he gave me a key...just a key..he handle it directly to me..., and he said "No matter what happen, you will always have this key..so please keep it forever"

so please if anyone know what is the definition about this, please tell me.......