The phrase "body of the mother" refers to the physical self of a person's mother. It signifies the physical presence and form of a mother, highlighting her role in giving birth and nurturing her child. Full definition
I didn't believe it initially till I got to the farm and saw the lifeless body of my mother with her tongue, heart, womb and private parts all removed,» he said. (xliveafrica.com)
After Damien Hirst won the 1995 Turner prize for his vitrines containing the bisected bodies of a mother... (highbeam.com)
For example, in discussing the virginity of Mary in the act of giving birth, Fr Flader cites additional texts explaining the more specific point of how «Jesus could pass through the virginal body of his mother without rupturing it» (p114). (faith.org.uk)