Bhagavad Gita 3:17: The person who rejoices in, and is content with, the Atma/Self

यस्त्वात्मरतिरेव स्यादात्मतृप्तश्च मानवः। आत्मन्येव च सन्तुष्टस्तस्य कार्यं न विद्यते।।3.17।। 

- Bhagavad Gita Chapter 3, Verse 17: https://gita-rsi.vercel.app/verse/136

But for that man who rejoices only in the Self, who is satisfied with the Self and is content in the Self alone, indeed there is nothing to do. - Translation in English by Swami Sivananda

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But the man whose delight is only in the Self, who is satisfied with the Self, who rejoices in the Self, for him nothing remains to be accomplished. - Translation in English by Swami Adidevananda

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Ravi: IMHO, the key words in this verse about Atma are:

Atma rathihi - rejoice in the Self (alone/only)

Atma thrupthaha - content in the Self

Atma santhushtah - satisfied in the Self (alone/only)

IMHO, such an attainment where a person rejoices in, and is content with, the Atma/Self alone/only (and does not desire anything else (for himself/herself)), is an awesome spiritual achievement. [The person may still pray for happiness of others and serve others. The key point is that he/she does not desire anything for himself/herself.]