This quote is a profound metaphor that encourages us to perceive our true nature beyond the physical realm. When Rumi says, "Don’t see yourself as a body of clay," he is urging us to not limit our understanding of ourselves to our physical bodies or material existence, which are transient and finite, just like clay.

The second part of the quote, "See yourself as a mirror reflecting the divine beauty," suggests that we are more than just physical beings, we are spiritual entities capable of reflecting divine qualities. A mirror simply reflects what is in front of it without distortion or judgment. Similarly, we, as human beings, have the capacity to reflect divine attributes such as love, compassion, kindness, and wisdom.

Applying this idea in today’s world or in personal development could mean striving to live beyond the physical or material aspects of life. It encourages us to cultivate our inner qualities, to be more compassionate, kind, and understanding, as these are the reflections of the divine beauty within us. It also urges us to perceive others in the same light, recognizing the divine beauty within them, regardless of their physical appearance or material status.

Moreover, this concept can be a tool for self-empowerment. By not identifying ourselves purely with our physical bodies or material possessions, we can free ourselves from societal pressures and expectations that often lead to feelings of inadequacy or dissatisfaction. Seeing ourselves as mirrors reflecting divine beauty can help foster self-love, acceptance, and inner peace.

So, in essence, this quote is a call to shift our perspective from a materialistic viewpoint to a more spiritual one, to recognize and nurture the divine qualities within us, and to see beyond the physical appearances in others.