Non dual non doership

 You’re pointing toward ideas often found in Advaita Vedanta and related contemplative traditions:

Non-dual → the separation between “me” and “everything else” is not ultimately fixed or absolute. The ordinary sense of a separate self is seen as partial or constructed.

Non-doership → actions happen, but the deep “I am the independent controller causing everything” is questioned. Thoughts arise, emotions arise, choices arise within conditions. The claim is not “nothing happens,” but “the ego-self may not be the true doer.”

In the language you’ve been using:

• Swadhyay → observe.
• MONE → observe objectively, not just emotionally.
• OST → include the whole field: me, others, situation, things.
• Non-dual → soften rigid boundaries of “me vs them.”
• Non-doership → loosen “I alone caused this / control this.”

That can shift self-study from:

“Why did I mess this up?”

to:

“What conditions, habits, emotions, situations, and patterns moved here?”

Not to remove responsibility, but to reduce unnecessary ego-burden and blame while still learning.

There’s also an interesting resonance with the verse you started with — acting quietly, sincerely, without performative ego. Action still happens, but not always from “look at me, I’m the doer.”

A concise way to phrase the whole thing might be:

Observe clearly.
Act sincerely.
Hold lightly the idea that “I” am the sole doer.

Or even shorter:

Soft effort. Clear seeing. Less ego in authorship.