A picture, fragment of conversation, or emotion can suggest the theme or setting for a story or poem. Here’s a photo which might prompt you into scribbling a few odd sentences to work on later:
Study the mood of the photo. What is the time of day/year? Did you notice the sunglasses on the table? Is one character waiting for another? What conversation will ensue – either in the mind of the character or between them? What conversations will be overheard?