According to Osho, brown—or any color—is not an inherent property of an object; color arises only in relation to light, the senses, and awareness. Things are not fixed with qualities; experience supplies them. Seeing this dissolves naive realism: the world you take as solid is a participatory event between object and consciousness, inviting humility, inquiry, and freedom from rigid labels.
Things don’t have colors by themselves; color appears only when light and your seeing meet the thing.