Imagine that you are looking at a waning moon. You might see the moon as a solid, permanent object with a clear form and identity. However, if you were to observe the moon over a period of time, you would notice that it is constantly changing and impermanent. Each night, it appears to shrink and become less full.
As you contemplate this cycle of change, you begin to realize that the moon has no inherent self-nature or essence. Instead, the moon is simply a collection of parts, including rock, dust, and various other materials, that are dependent on various conditions for their existence.
This recognition of emptiness can help us to understand the nature of reality in a deeper way. Just like the moon, all phenomena are impermanent and lacking in inherent existence. By recognizing this truth, we can let go of our attachment to fixed views and identities, and instead cultivate wisdom, compassion, and freedom in our lives.