What does this dream mean?

Jumping out in dangerous conditions which at first may have seem controlled could mean leaving a "safe" environment (steady job, school, home) and encountering situations which require resilience (bouncing off cliffs) and awareness of wrong directions in life (grave marble) and strength of character (changing directions off the cliff). Finding the cool house with the guy there means you see a future (new home) with interesting caring people (he offered to help and listened to you talk about the trip). This means you see that you need to apply your strength and courage to the efforts you must make to get the life you want. And that you see that you have the abilities to get what you want even though it may be bumpy along the way. Keep a journal over the next 7 years. It will be your story that you will not have to invent but instead just enjoy when your journey is over.