Bhagavad Gita, Chapter 11, Verse 53

Neither by the Vedas, nor by austerity, nor by gifts, nor by sacrifice can I be seen as you have seen Me.

The same real limitation gets repeated here, no amount of ritual or study alone opens this door.

Krishna underlines the point instead of letting it pass as a one-time remark, this kind of vision genuinely can't be earned through practice alone. Real access, it's made clear, comes from somewhere else.