Recall the last time you were in a place of worship. Write about where you were, why you were there, what you were thinking and feeling, what happened.
Now recall the last time you were at an athletic event. Where was it? What was it? Why were you there? What were you thinking and feeling? What happened?
Now write a story in which you combine half of the elements in one of these events with half of the elements in the other event. Reconcile the disparate parts to make a coherent whole–even if that takes you into magical realism or some other unexpected genre.