mgs lojong Dignaga approach Vaibhashika tradition bodhichitta physicalistic Shantarakshita Yogacara Pontikonisi SmQundrta Smarta preterist sankhara Hjorvardssonar Satlok Dualism Originalist Advaitic Platformism monism Tsongkhapa vanzolinii Gutaniz Bushyasta subjectivism Shaktas Simhamukha reifying Vailati Ashtamangala Gaudiya monistic contractarian Sizdah objects mdo