Riha is special water that is very important in a religion called Mandaeism. Mandaeism is a religion that started a long time ago in a place called Mesopotamia. They believe in a powerful god named Hayyilah, and they believe that John the Baptist was a very important person in their religion.
Now, let's talk about riha. Riha is water that is really pure and special. Mandaeism followers believe that riha can cleanse them of bad things and make them feel more connected to their god. They use riha for special religious ceremonies, and they believe that it has healing powers too.
To make riha, you need to get water from a river or spring that is very pure. Then, you put it in a special container and keep it safe from anything that could make it impure. Sometimes, they add special things to the water, like incense or other herbs, to make it even more special.
In Mandaeism, riha is really important. It's kind of like holy water in other religions. When people use riha, they feel very close to their god and they believe it's helping them in many ways. It's a very important part of their faith.