One of the most famous systems of Shaolin methods of strengthening one's own body and achieving fortitude is Bodhidharma gymnastics "Ijinjing," whose name can be translated as "Canon of changes in muscles," or "Canon of muscle transformation." It is in "Yijinjing" that the secrets taught to monks by Bodhidharma himself are set out. Yijinjing is rightfully considered the main of the basic complexes, from which the training of the Shaolin internal tradition begins.