God is the master of the unseen. In verses 23:12–14 of the Qur'an (qur'an means recitation), God reveals the stages of the human embryo with a precision unknown in the 7th century, and only confirmed over a thousand years later with the rise of embryology in the 17th–18th centuries. For Sharon, this specificity is a sign pointing back to the Quran's divine origin, and a confirmation of its place in the lives of all believers.