When the brilliance of iron creates a mirror that reflects forms, it causes all troubles to disappear.

This couplet beautifully illustrates the journey of transformation. Imagine taking a piece of raw, sharp iron and turning it into a smooth, reflective mirror. This isn't an easy task. It requires immense effort, shaping, and continuous polishing. The phrase "difficulties turn around" suggests that throughout this intricate process of refinement, many obstacles are encountered and eventually overcome. The couplet teaches us that true beauty and utility often emerge only after diligently facing and conquering numerous challenges. It's a testament to the power of perseverance in achieving refinement.