How to seek samadhi seal of Buddhism

I can't find a suitable picture, because the Buddha and Bodhisattva must be complete. This is the clearest way to find it, but the left hand in the picture should be auspicious, and if it is changed to the right hand, it will be samadhi.

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".