My Ghost Almost Smells Good

My mother had a dream before she died. In the dream, there was a man in black standing outside the delivery room, holding three sticks of incense in his hand, but he never lit it. He told my mother: "I'm waiting for your daughter. I'll take the incense she ordered." Twenty years later, I was admitted to an unknown university in the Northeast and found a part-time night shift job at a funeral parlor near the school. I bumped into that man on the first night. He looked at me and said softly: "You lit the incense, and I am yours." "Wait a minute, what do you mean by your name? When did I light the incense? Why didn't I know." Later I found out that the three old incense sticks my mother left for me could summon him once I lit them. He was a ghost messenger from the underworld named Shangguan Si.