Though much of what she says is gibberish, the recognizable words are all geared towards relaxation. Few things make me want to relax less than someone telling me to “relax”, but in this instance, combined with the hand movements and mouth sounds, it actually works.
Are you new to ASMR? If so, you might want to learn about the meaning of ASMR, the science behind it, the benefits of experiencing it or the best ASMR triggers.