Imagine that you are holding a glass of water that is half-full. As you move the glass from side to side, the water sloshes around inside. You might think of the water as a fixed, permanent substance with its own intrinsic nature. However, if you were to reflect more deeply on the nature of the water, you would realize that it is not a static, permanent object. The water is constantly changing and moving within the glass, and it is dependent on various factors for its existence.

For example, the water is affected by gravity, the shape of the glass, the temperature of the room, and other conditions. There is no fixed, unchanging substance that we can call water - it is simply a collection of parts and conditions that come together in a certain way. If you were to remove any of these conditions, such as by changing the shape of the glass or increasing the temperature, the water in the glass would be affected and change accordingly.

This recognition of emptiness can help us to see the world around us in a more fluid way. By understanding that all phenomena are impermanent, dependent and devoid of inherent existence, we can develop greater wisdom and compassion. We can let go of our attachment to fixed ideas and concepts, and see the world around us as constantly changing and dynamic. Reflecting on emptiness through the example of a sloshing glass of water can be a powerful way to deepen our understanding of this important concept in Buddhist philosophy.