What does it mean that amsr has a surprise on the plane?

After boarding the ship, amsr's up master will send you some audio that others can't hear. Call it a surprise. Asmr, translated into Chinese as spontaneous perceptual meridian response, refers to the pleasant and unique feeling that the human body produces on the skull, scalp, back or other parts of the body through the perceptual influence of vision, hearing, touch and smell.