The term 'A Light Overhead' can be solved by the four-letter word 'HALO'. A HALO is a circle of light that is often depicted above the head of a holy figure in religious art. It is also used to describe a ring of light around the sun or moon, which is caused by refraction of light through ice crystals in the atmosphere. In modern usage, the term HALO is often used to refer to a person's aura of goodness or holiness.