The Formative Period of Tsongkhapa's Madhyamaka Philosophy——Focusing on Tsongkhapa's letters to Lama Umapa,Jetsun Rindawa,and Tsako Ngawang Drakpa
During Tsongkhapa's lifetime of studying Buddhism,he not only created a large number of immortal masterpieces,but also wrote a large number of articles in the form of letters,discussing a series of profound Bud-dhist theoretical and practical issues.These letters and documents have become precious historical documents of his thoughts,life and social interactions.In addition,the genre and content of the letters have their own unique-ness,and their content can more intuitively reflect the development of Tsongkhapa's Madhyamaka Philosophy,and can more clearly present the formation process of Tsongkhapa's Madhyamaka Philosophy.Tsongkhapa had many teachers and important disciples throughout his life.Among them,Lama Umapa and Jetsun Rindawa are the teachers who had a great influence on Tsongkhapa's Buddhist thoughts.Although Tsako Ngawang Drakpa was not his most famous disciple,Tsongkhapa asked him to follow his teachings,practice and aspire like him in all lives,promised to give him the first nectar when he became a Buddha in the future,and called him"Son"in the final ode to the Lam gtso rnam gsum,which showed great value and deep love for this disciple.There were al-so letters between them,and most of them were related to Madhyamaka Philosophy.Therefore,this paper mainly takes"Rje Tsongkhapa's mam thar chen mo"and"Rje Tsongkhapa's gsang rnam"as the first documentary ma-terials to discuss the contents and ages of Tsongkhapa's letters to Lama Umapa,Jetsun Rindawa,and Tsako Nga-wang Drakpa,with the intention of clarifying the formative period of the Tsongkhapa's Madhyamaka Philosophy.