Je Tsongkhapa's main early studies focused on works by Dorje Shugden emanations.

[Ringo Starr]

http://plato.stanford.edu/entries/tsongkhapa/

According to Kedrup, on his arrival in Central Tibet Tsongkhapa first studied Tibetan medicine, then a traditional Buddhist curriculum of abhidharma, tenet systems (Tib. grub mtha') focusing on the Middle Way and Mind Only (Sk. cittam?tra also called yog?c?ra) philosophy, Buddhist ethics (Tib. sdom gsum), and epistemology (Sk. pram??a).

His early studies were pursued mainly in institutions affiliated with the two dominant scholarly traditions (Tib. lugs) of the time: the Sangphu (gSang phu ne'u tog) tradition founded by Ngok (rNgog bLo ldan shes rab) (1059–1109), and the Sakya (Sa skya) epistemological tradition based primarily on the works of the Sakya Pa??ita (1182–1251).

[yontenjamyang]

It is said that since one of the incarnations of Tulku Dragpa Gyeltsen was Dultzin Dragpa; and since Dultzin was regarded to have the same mind stream as Je Tsongkhapa and ultimately of Manjushri, Je Tsongkhapa's early studies and to me even his later works were of Manjushri's.

Having said that, the main thing here for me is that since Dorje Shugden manifested from this lineage as a Protector; and protectors; especially Dorje Shugden are known to be closer to beings because in the case of Dorje Shugden He manifested in the form of a samsaric god, then Manjushri's teaching as made suitable for us of these times by Je Tsongkhapa has never been closer and more available to beings.

Hence, this is the biggest opportunity for us. Don't act like the merchant who went to an island of jewels and came back empty handed.

[DharmaSpace]

Thank you Ringo Starr with us, this is interesting information.

Naturally a peerless master like Je Tsongkhapa will gyrate and be attracted to the incarnations of Manjushri teachings.