Around the world, water is used in religious rituals of every kind — as a form of blessing, and as something to drink and purify bodies and souls in, Alittlebithuman.com reported.
Muslims, in general, call their holy water as Zamzam water, which comes from a spring in Mecca, or the holiest of Muslim cities. Like with other religious traditions, this holy water is used for healing both physical and spiritual illnesses.
Shia Muslims, on the other hand, drink “healing water.” This is often made by dissolving dust from sacred locations like the Karbala in water and then drinking it as a cure for physical and spiritual ailments. In some traditions, this water is also called light and ambrosia.
Depending on which religion you practice, you can’t always “make” holy water. Given all the above, sometimes holy water is based on where you got the water from, like Lourdes in France and Mecca in Saudi Arabia. Sometimes it’s also a matter of what you put into it, like dust from Karbala in Iraq.