Jehsah (제사)

I was almost 5 years old when my family moved from Seoul, South Korea, to Chicago. Language barrier aside, I couldn’t figure out why some of my new pals were so excited about the arrival of an old man they didn’t know, who would slide down chimneys that some of them didn’t have, to drop off presents under decorated trees in their living rooms. Couldn’t this Santa person just use the door like everyone else?