सर्वाणीन्द्रियकर्माणि प्राणकर्माणि चापरे।आत्मसंयमयोगाग्नौ जुह्वति ज्ञानदीपिते॥
sarvāṇīndriya-karmāṇi prāṇa-karmāṇi cāpareātma-sanyama-yogāgnau juhvati jñāna-dīpite
Word by word
The verse says
Others pour all the workings of the senses and of the breath into the fire of holding oneself together, kindled by knowing.
In plain words
A third practice, and it is more total than the first two.
Not just the senses. The prāṇa too - the breath, the life-movement. All of it into one fire.
And the fire is jñāna-dīpite - lit by knowing. The knowledge is what keeps it burning.
Where you've felt this · in parenting
A father in the first year with a new baby. Sleep, appetite, plans, the whole shape of the day - all of it goes in. Nobody would call it a spiritual practice. Very little else strips a person down that thoroughly.
Going deeper
Ātma-saṁyama-yogāgnau - in the fire of the yoga of self-restraint. This is the most inward of the offerings so far, and it is the one closest to what later tradition means by yoga proper.
One detail is worth catching: the fire is kindled by knowledge. Restraint on its own is not the fire. 2.59 already said so - withdrawal leaves the taste intact. Something has to have been seen.
So the sequence in the catalogue is not random. Outward offerings, then sense discipline, then this. Each one takes more in, and each one requires more of what 4.19 called the fire of knowing to sustain it.
And the verb throughout is juhvati - they pour, they offer. Not they destroy or they suppress. The senses and the breath are being given, which is a different relationship to them than war.