The colors in light are transparent. When they are "traveling" together, They become "invisible" or better "indivisible" by the organic lens of our eye. The colors are reflected in varying degrees from objects, depending on the qualities and pigments of the surface. When light is refracted by transparent, geometric surfaces like crystals and cut gems, they are deflected and divided at different speeds according to wavelength. We can easily see these colors that are refracted and divided by the prism on a flat surface, like a painted wall. A hanging ornament of prisms is a good way to entertain a baby, young toddler or an old man who has learned to slow down and enjoy the simple pleasures of life. God bless you Rajan Jolly.