A mortuary house is a special building where people take dead bodies to be prepared for burial or cremation. It's kind of like a hospital for dead people.
First, the body is placed on a table in a special room called an embalming room. The embalmer, who is a special person trained to take care of dead bodies, will clean the body and put in a special fluid that helps preserve it. They may also put makeup on the body to make it look nicer.
Once the body is prepared, it may be put in a special casket, which is like a fancy box that the body is placed in for the funeral or cremation.
The mortuary house also has a special room called the chapel, where people can come to pay their respects to the person who has died. This room usually has chairs, flowers, and a special altar with candles and other decorations.
Overall, the mortuary house is a very important place where people go to take care of the bodies of their loved ones who have passed away.