[Jian] When the pathogenic factor of Shanghan (Cold Damage) transmits to the Jueyin (Jueyin Meridian), it results in a pathological condition characterized by the intermingling and disorder of Yin and Yang. If Yang Qi enters into the Yin aspect, this indicates that Yang exists within Yin; consequently, there will be no cold extremities (Jue Leng). If Yin Qi enters into the Yang aspect, this indicates that Yin exists within Yang; then