Paul wrote to the Philippians from a Roman prison, revealing the secret to experiencing joy even in difficult circumstances. True joy comes from loving what we can actually gain or expect to gain. Paul discovered that by loving Christ's glory instead of his own personal success, he could find joy in any situation. He practiced gratitude for others and for what God was doing in their lives, rather than focusing solely on his own needs. This shift in perspective - from loving our own glory to loving Christ's glory - transforms our ability to experience genuine joy regardless of our circumstances.