The Upaniṣads / Kaṭha / 6.11 They call it yoga

6.11

The Kaṭha (कठ)

तां योगमिति मन्यन्ते स्थिरामिन्द्रियधारणाम् ।
अप्रमत्तस् तदा भवति योगो हि प्रभवाप्ययौ
tāṃ yogam iti manyante sthirām indriyadhāraṇām |
apramattas tadā bhavati yogo hi prabhavāpyayau

The line

That they consider yoga (योग), the firm holding of the senses. Then one is not heedless. For yoga (योग) is arising and passing away.

नेपालीमा

त्यसलाई उनीहरू योग ठान्छन्, इन्द्रियलाई दृढ समात्नु। तब मानिस लापरवाह हुँदैन, किनकि योग उत्पत्ति र नाश हो।

Where it sits

Yoga Sūtra (सूत्र) 1.2 defines yoga (योग) as the stilling of the mind's activities. This mantra defines it as the firm holding of the senses, and then says it is both the coming forth and the going back. The two books do not use one sentence. The horses of 3.4 are what is held.

Split: tām (ताम्) + yogam iti manyante (योगमिति मन्यन्ते) + sthirām indriya-dhāraṇām (स्थिरामिन्द्रिय-धारणाम्) + apramattaḥ tadā bhavati (अप्रमत्तः तदा भवति) + yogaḥ hi (योगः हि) + prabhava-apyayau (प्रभव-अप्ययौ)

Sanskrit, in depth

The words

WordGrammarSense
tām (ताम्)accusative, feminineThat. The course of 6.10.
yogam iti manyante (योगमिति मन्यन्ते)they consider it yoga (योग)Accusative.
sthirām indriya-dhāraṇām (स्थिरामिन्द्रिय-धारणाम्)a steady holding of the sensesAccusative, in apposition.
apramattaḥ tadā bhavati (अप्रमत्तः तदा भवति)then one becomes unheedlessHeard apramattas tadā (अप्रमत्तस् तदा).
yogaḥ hi (योगः हि)for yoga (योग)Heard yogo hi (योगो हि).
prabhava-apyayau (प्रभव-अप्ययौ)the arising and the passingNominative dual. Heard prabhavāpyayau (प्रभवाप्ययौ).

The phrases

They call that yoga (योग): the steady holding of the senses. Then one is attentive. Yoga (योग) is the arising and the passing away.

Sanskrit in this line

Yogaḥ hi (योगः हि) is yogo hi (योगो हि). Prabhava (प्रभव) plus apyayau (अप्ययौ) is prabhavāpyayau (प्रभवाप्ययौ).

Say it back

Say the mantra's own name for the holding.