It could be a commentary on how blending in, or being one with your surroundings is heroic, or noble. It could just be an observation. Then we think, how does he hide himself in his own figure? Is he so large that he dominates the landscape? Is he so small that he disappears against the vast background?
This is very similar to the quote regarding being one with the ten thousand things. Looking within, and looking without, it is the same. Zooming in and zooming out, we see phenomena, chaos becomes ordered and mathematical, math becomes chaos. It is the same, it is not two different things, it is more like two sides to the same thing.
We must learn to appreciate everything around us, and everything in the universe, including the cycles of life and death.
Knowing inevitably all life on Earth as we know has a beginning and an end, we should all learn to appreciate the fleeting moments we do have here with ourselves, with others, and with nature.