Srila Prabhupada—The Complete Science of Bhakti-Yoga #1—Vrndavana-20-10-1972
793) Whether I know how a person gets his body! Taught by Srila Prabhupada!
———————–This is also explained in the Bhagavad-gita: karanam guna-sangah asya sad-asad-janma-yonisu. Sad-asad-janma-yoni. Yoni means the source of birth. Mother is called yoni, and father is called bija. Yatha
yoni yatha bijam. According to bijam and according to yoni, we get body. So why you are
getting different types of body? Karanam guna sangah asya. He is contacting a particular
type of the modes of material nature. ————————–