Bhagavad Gita, Chapter 2, Verse 50

Endowed with this evenness of mind, one frees oneself in this life, alike from vice and virtue. Devote yourself, therefore, to this Yoga. Yoga is the very skill of work.

Working without gripping the outcome doesn't just feel lighter, it makes the work better.

Letting go of the result isn't a step back from performance, it removes the fear and second-guessing that get in the way of doing something well. A surgeon focused only on the outcome operates worse than one who trusts the process.