A good story that's what you start with. Co-ordination is very important and a trained ear, a detailed ear. A feeling, an emotion to feel when something happens. It's the greatest feeling you can have. The greatest art form is still literature, it's the most direct communication, but once you are convinced you can be led up the garden path gently.
Cinema is, after all, based on persistence of vision and it applies equally in sound.
What we are trying to do is make it believable. There are times when you can only do this by being surreal. There is a helicopter scene, which goes to silence. Silence is the thing most people are afraid to use. Perhaps it's because nature is suspicious of silence and people abhor it.