A reflected light can brighten a room from a place where no lamp stands.

Light does not have to come from where the lamp is. A pale wall, a mirror, or a glossy floor can carry brightness into a corner no fitting reaches, and the room improves at a point where nothing was installed. Influence often travels the same way, arriving somewhere through a person who is only passing it along. Sources get credited and surfaces rarely do.

Look at where the light in a room actually lands and move one thing to help it. Then consider whose light you have been reflecting, and tell them what it reached.