The glorious Naropa was an eminent scholar who had consummated his understanding of the oceans of inner and outer philosophical tenants. Still, with no concern for his body or life, he endured intense hardships in order to receive introduction to the naked nature of mind, free of obscurations, which is the basis for all of samsara and nirvana. This pleased his master, Jetsun Tilopa, who sang him a song of mahamudra, an introduction to the essence of mind itself. This song became known as The Ganges Mahamudra and should be cherished by all beings who wish to avoid suffering and obtain happiness.
This is the version of the root text referenced by Shamar Konchok Yenlak in his commentary on the text.