The knowledge and strength to cross over the material existence is coming from Krsna and Balarama. Balarama is Adi-guru, the original guru, He is the original source of all spiritual strength. If one wishes to get spiritual strength, he must take shelter of guru and predecessor gurus.
Transcription of a Lecture Given on Balarama Purnima, August 26, 2018, in Almaty, Kazakhstan