What tenet of imagery is a poet following when avoiding commenting on the subject of her poem?

When a poet avoids directly commenting on the subject of her poem, she is likely following the tenet of "show, don't tell" in imagery. By using vivid descriptions and sensory details, the poet allows readers to draw their own conclusions and experience the emotions and themes of the poem more deeply. This approach can create a more immersive and evocative reading experience for the audience.