Swami Chinmayananda Commentary
ALL THE ACTIVITIES OF THE SENSE-ORGANS (JNANA-INDRIYAS), AND THE ORGANS OF ACTION (PRANA-INDIRYAS) ARE OFFERED INTO THE KNOWLEDGE KINDLED-FIRE OF RIGHT UNDERSTANDING — Control of the ego by the better understanding of the Divine Reality is called here as the “Yoga-of-Self-restraint’ (ATMA-SAMYAMA-YOGA).
The “Path-of-Discrimination” (Vichara) lies through a constant attempt at distinguishing between the limited lot of the ego and the divine destinies of the Spirit. Having discriminated thus, to live more and more as the Self, and not as the ego, is to “RESTRAIN THE SELF BY THE SELF (Atma-Samyama).” By this process, it is evident how the mad ramblings of the organs of perceptions and actions can be completely restrained and entirely conquered.
EXHAUSTING THE ABOVE-MENTIONED FIVE DIFFERENT TECHNIQUES, AS THOUGH TO BRING TO THE UNDERSTANDING OF ARJUNA, THAT A HUNDRED OTHER METHODS CAN BE INDICATED, KRISHNA ENUMERATES IN HASTE FIVE MORE DIFFERENT METHODS IN THE FOLLOWING STANZA:
Adi Sankara Commentary
Further, apare, others; juhvati, offer, i.e. merge; sarvani, all; indriya-karmani, the activities of the organs; and also the prana-karmani, activities of the vital force- prana means the air in the body; they offer its activities such as contraction, expansion, etc; atma-samyama yoga-agnau, into the fire of the yoga of self-control-withdrawal (samyama) [Samyama consists of concentration, meditation, and Self-absorption. The idea conveyed by the verse is that by stopping all activities, they concentrate the mind on the Self.] into the Self (atma) is self-control (atma-samyama); that itself is the fire of yoga (yoga-agni); (they offer) into that fire; jnana-dipite, which has been lighted by Knowledge, made to blaze up by discriminating knowledge, as if lighted up by oil.
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Srimad Bhagavad Gita Chapter 4 – Verse 27 – 4.27 sarvanindriyakarmani – All Bhagavad Gita (Geeta) Verses in Sanskrit, English, Transliteration, Word Meaning, Translation, Audio, Shankara Bhashya, Adi Sankaracharya Commentary and Links to Videos by Swami Chinmayananda and others – 4-27