This document discusses the importance of sharing and keeping alive an organization's "WHY", which is its core purpose or belief. It recommends clearly communicating the WHY to motivate employees and help them find their own reasons for working at the organization. It also suggests that a WHY can fade over time if not continuously front and centered in communication and daily actions. As an example, it notes that Southwest Airlines appears to still have a strong WHY of caring for employees who then care for customers, years after being analyzed in Start With Why. It also addresses some potential questions about what a WHY can be.