This document discusses the development of human senses from an embryo to adulthood and compares it to the development of spiritual senses. It notes that each of the five physical senses - touch, taste, smell, hearing, and sight - emerge at different points in fetal and infant development. It then explores how each spiritual sense - touch, taste, smell, hearing, and sight - relates to discerning spiritual truths and realities. The document emphasizes that regularly exercising our spiritual senses through reading Scripture, prayer, and obedience helps them to mature so we can better distinguish good from evil.