Imagining a dusty bookshelf with many books untouched with many years, and an old castle with a classic escrotoire. What image would follow your thought? Vampire, wolfman, apparition or Magneto?
Anything for me is a possible element of a fantastic story, what I see, smell, feel... all wee action can create a wonderful story. That's who I am, a nineteen years old film director who wants to be a film director in Hollywood. We all have a dream, if you don't have one... you will! And you must! What I have learned from my life is one of the important way to get imagination is by reading. Books bring us into different imaginary worlds or realistic one. You read, you thought; you thought, you create. You create, someone else read. It's an amazing circulation... (Personal opinion.)
Today I fell asleep on the couch, once again I dreamt. Dream is another source of my creation, you could never predict what would happen. And the dream became an amusing adventure. (Exclude the theory that you could control your dream by daily actions.) You might want to jot down what you dreamt down revise and exaggerate, that will make dreams become another readable dream.