Because they believed in the after life and in order to got there they needed there body. Many other things were required....
.digestive organs and lungs were removed and those were preserved separately and placed in four vases called "canopic jars". Then the body was treated with salts which were put inside the body, together with the dryness of desert air to make the body dry. After that it was bathed, rubbed with resin from pine trees, and wrapped in hundreds of yards of linen. It took 70 days., digestive organs and lungs were removed and those were preserved separately and placed in four vases called "canopic jars". Then the body was treated with salts which were put inside the body, together with the dryness of desert air to make the body dry. After that it was bathed, rubbed with resin from pine trees, and wrapped in hundreds of yards of linen. It took 70 days., digestive organs and lungs were removed and those were preserved separately and placed in four vases called "canopic jars". Then the body was treated with salts which were put inside the body, together with the dryness of desert air to make the body dry. After that it was bathed, rubbed with resin from pine trees, and wrapped in hundreds of yards of linen. It took 70 days., digestive organs and lungs were removed and those were preserved separately and placed in four vases called "canopic jars". Then the body was treated with salts which were put inside the body, together with the dryness of desert air to make the body dry. After that it was bathed, rubbed with resin from pine trees, and wrapped in hundreds of yards of linen. It took 70 days., digestive organs and lungs were removed and those were preserved separately and placed in four vases called "canopic jars". Then the body was treated with salts which were put inside the body, together with the dryness of desert air to make the body dry. After that it was bathed, rubbed with resin from pine trees, and wrapped in hundreds of yards of linen. It took 70 days., digestive organs and lungs were removed and those were preserved separately and placed in four vases called "canopic jars". Then the body was treated with salts which were put inside the body, together with the dryness of desert air to make the body dry. After that it was bathed, rubbed with resin from pine trees, and wrapped in hundreds of yards of linen. It took 70 days., digestive organs and lungs were removed and those were preserved separately and placed in four vases called "canopic jars". Then the body was treated with salts which were put inside the body, together with the dryness of desert air to make the body dry. After that it was bathed, rubbed with resin from pine trees, and wrapped in hundreds of yards of linen. It took 70 days., digestive organs and lungs were removed and those were preserved separately and placed in four vases called "canopic jars". Then the body was treated with salts which were put inside the body, together with the dryness of desert air to make the body dry. After that it was bathed, rubbed with resin from pine trees, and wrapped in hundreds of yards of linen. It took 70 days, digestive organs and lungs were removed and those were preserved separately and placed in four vases called "canopic jars". Then the body was treated with salts which were put inside the body, together with the dryness of desert air to make the body dry. After that it was bathed, rubbed with resin from pine trees, and wrapped, digestive organs and lungs were removed and those were preserved separately and placed in four vases called "canopic jars". Then the body was treated with salts which were put inside the body, together with the dryness of desert air to make the body dry. After that it was bathed, rubbed with resin from pine trees, and wrapped in hundreds of yards of linen. It took 70 days. In hundreds of yards of linen. It took 70 days.>