काम्यानां कर्मणां न्यासं संन्यासं कवयो विदुः।सर्वकर्मफलत्यागं प्राहुस्त्यागं विचक्षणाः॥
kāmyānāṃ karmaṇāṃ nyāsaṃ sannyāsaṃ kavayo viduḥsarva-karma-phala-tyāgaṃ prāhus tyāgaṃ vicakṣaṇāḥ
Word by word
The verse says
Giving up actions driven by wanting is what the thoughtful call renunciation. Letting go of the fruit of everything you do is what the clear-sighted call surrender.
In plain words
The answer comes immediately, and it is a clean division.
Renunciation drops the actions that were only ever about getting something.
Letting go keeps every action and drops the claim on the result. One removes work from your life. The other removes something from inside the work.
Where you've felt this · at work
Two people leave the same company in the same month. One quits because the job was only ever about the money and he has enough now. The other stays in the same chair, does the same work, and stops checking whether anyone noticed. From the outside only one of them has changed anything. From the inside the second change is the larger one.
Going deeper
Two different things are being separated here, and the second is available to everyone while the first is not.
Sannyāsa removes a category of action: the things you only do because of what they fetch. Drop those and your days get shorter. Tyāga removes nothing from the day at all. It removes the grip on the outcome, which is invisible from outside and is the harder of the two.
This matters because the dramatic option is the one people reach for. Leaving, quitting, walking out. It feels decisive and it changes your circumstances, which is a real relief for about a month.
The quieter one changes nothing you could photograph. It is also the one that works wherever you happen to be, including in a life you cannot leave.