The Way of the Bodhisattva, composed by the monk and scholar 'S=antideva in eighth-century India, is a Buddhist treatise in verse that beautifully and succinctly lays out the theory and practice of the Mahayana path of a bodhisattva. Over one thousand years after 'S=antideva's composition, Künzang Sönam (1823-1905) produced the most extensive commentary on the Way of the Bodhisattva ever written. This book is the first English translation of Künzang Sönam's overview of 'S=antideva's notoriously difficult ninth chapter on wisdom. The ninth chapter of the Way of the Bodhisattva is philosophically very rich but forbiddingly technical, and can only be read well with a good commentary. Künzang Sönam's commentary offers a unique and complete introduction to the view of Pr=asa:ngika-Madhyamaka, the summit of Buddhist philosophy in Tibet, as articulated by Tsongkhapa. It brings 'S=antideva's text, and Tsongkhapa's interpretation of Pr=asa:ngika-Madhyamaka, into conversation with a vast Buddhist literature from India and Tibet. By articulating the integral relationship between emptiness and interdependence, this text formulates a sustained and powerful argument for emptiness as a metaphysical basis of bodhisattva ethics. This volume makes the ninth chapter accessible to English-speaking teachers and students of the Way of the Bodhisattva.