Not to "sack" Sackville (previous song interpreter below), but Kwan Yin is a deity of Buddhism. She is "Mother Goddess" of all religions, depicted as the "mother and child" goddess. She has many other names, and all mythologies and false religions carry a version of her in the main story lines. Alanis here worships the great mother, and since she is calling herself a global citizen, the reference to Kwan Yin personified in the song is accurately interpreted as worshipping Mother Earth.