Bhagavad Gita, Chapter 6, Verse 15

Thus always keeping the mind steadfast, the Yogi of subdued mind attains the peace residing in Me, the peace which culminates in Nirvâna.

Consistency, not intensity, is what this whole practice actually seems to run on.

This closes the section on meditation practice with its real outcome. Not a single dramatic breakthrough, but sustained, ongoing absorption, described as what actually leads to lasting peace.