HD and Chakras
Human Design's nine centers are an evolution of the seven traditional chakras. Ra Uru Hu received the updated system in 1987.
The Head, Ajna, Throat, Heart, Solar Plexus, Sacral, and Root roughly correspond to the seven chakras.
The Spleen and G centers are unique additions. The Spleen governs intuition and survival, while the G center governs identity and direction.
Understanding both systems gives you a richer view of your energetic anatomy and how energy moves through your body.