Why glass was covering body in casket?

Glass is often used to cover the body in a casket for several reasons, primarily to preserve the appearance of the deceased and provide a view for mourners. It protects the body from environmental factors while allowing loved ones to pay their respects. Additionally, glass can serve as a barrier against contaminants and help maintain dignity during the mourning process. In some cultures, this practice is also seen as a way to honor the deceased.