Seikijin usually reside in egg-like cocoons until they're activated. To enter a Seikijin, a Seikishi places his or her palm on the cocoon. After the palm is read, the Seikishi is then encased in a sphere as he or she travels to the chest cavity. As soon as a pilot in the cockpit activates it, the Seikijin breaks from the cocoon, which then forms the armor (and tail if the Seikishi is powerful) depending on who is in the Seikijin. Normal people cannot be taken inside the cockpit due to the high amount of Ahou radiated inside.