The form of aspergillum (holy water sprinkler) may differ from place to place. The form of the aspergillum differs in the Eastern Orthodox Church. An "aspergill" or "aspergillum" is a brush or branch used to sprinkle the water. When viewed under a microscope, the mold cells were said to resemble an aspergillum. The "Pheretima aspergillum" worm, used in Chinese medicine preparations, contains hypoxanthine. An aspergillum is also used in other religions, including Balinese Shaivism (Hinduism).