Why does my son always stare off at lights?

Why does my son always stare off at the light, Lamps, ceiling fixtures, any kind of light fixtures?

I am assuming that your son is an infant. This is more of a question about child psychology than optical phenomena and I am afraid I don't know much about child behavior. Scanning a few websites, though, I see many parents commenting on how their babies love to stare at lights (see this link). I would guess that your son stares at lights because they are fascinating. Bright shiny sources of light are a new experience for him.