Just like matriculation examination, school-leaving examination, then you enter into college, and then get your graduate, become a graduate, and then post-graduate, so the Bhagavad-gita is just entrance examination for spiritual education: Revision history
Diff selection: Mark the radio buttons of the revisions to compare and hit enter or the button at the bottom.
Legend: (cur) = difference with latest revision, (prev) = difference with preceding revision, m = minor edit.