Tong means intestine, qi and blood, and meridians, just like a expressway. Only when it is unblocked can it operate normally.

Tone is to regulate the inside of the body and regulate the internal environment of the body.

Tonifying means replenishing essence, qi and blood, supplementing physical quality and making the body reach a more harmonious state.

Reality, that is, consolidating the foundation and cultivating the yuan, is persistence, and it is a closed loop. Only by persisting for a long time can the body be more harmonious and healthy.