Hapkido is a Korean martial art that focuses on self-defense techniques, combining joint locks, kicks, and throws. It emphasizes circular movements and the use of an opponent's energy against them, making it effective for practitioners of all sizes. The training in hapkido includes both armed and unarmed techniques, allowing students to learn how to defend themselves in various situations. It also promotes physical fitness, discipline, and mental focus, making it a holistic practice for personal development.