I was watching an interview with William Kentridge who was discussing the impulse to make a film. Here's a rough transcription of what was said:
The films don't have a meaning which then gets drawn... the films come out of a need to make an image, an impulse to make a film... and the meaning emerges over the months of making the film. The only meaning they have in advance is the need for the film to exist.
Sometimes you just click the shutter, it's the start of an experiment, a train of thought, an exploration. Sometimes a meaning emerges; sometimes things die out; sometimes its all a mystery.
Remain curious.