The philosophy of Ippon is rooted in the Daoist principle that stillness defines movement. By introducing a single stimulus, the practitioner avoids "muddying the waters" of the patient's energetic field. In the Su Wen (Simple Questions) and Ling Shu (Spiritual Pivot), the classic texts of acupuncture, it is frequently stated that the superior physician treats before the disease arises, and the mediocre physician treats the disease. Saimin Ippon aligns with the former by addressing the primary energetic root (the Hon ) rather than the proliferating branches (symptoms).

In Meridian Therapy, disease is often viewed as a "Deficiency" ( Kyo ) in one of the primary meridians. The practitioner must determine which meridian is the primary cause of the imbalance. For instance, if the Liver meridian is identified as the primary Kyo (deficient), the "One Needle" would be placed on the Liver's tonification point (Liver 8, Ququan ).

Why use one needle when ten seem safe?