Fixed seal, also known as Zen fixed seal or samadhi seal. Put your hands behind your back, lower your abdomen, put your right hand on your left hand, and connect your thumbs. This handprint means meditation and inner peace. It is said that Sakyamuni Buddha used this posture when he meditated under the bodhi tree and practiced Taoism. In esoteric Buddhism, this kind of handprint is used by Tathagata in the fetal and Tibetan circles, and it is called "Dharma Definition Seal".