Yes, that's why I was confused. Do you mean "go" and "come" in the phrase in question stand for "turn"?Yes "over" and "above" and synonymous here. "On" is a preposition attached to "turn", we turn/switch televisions, lightbulbs, motors, "on" to get them working/started and turn/switch them "off" to stop them. So "a light bulb turned on" means "a light bulb was illuminated / lit itself up"
Yes, that's why I was confused. Do you mean "go" and "come" in the phrase in question stand for "turn"?