शक्तिः सिद्धिश्च ॥ कZ_०६.२.३० ॥
śaktiḥ siddhiś ca
(O rei deve avaliar) o poder (śakti) e a capacidade de obter êxito (siddhi).
Śakti is the underlying capacity/resources to act; siddhi is the practical ability to convert that capacity into achieved outcomes.