1.1.15

Brahma Sūtra / Adhyāya 1 / 1.1.15

तद्धेतुव्यपदेशाच् च

taddhetuvyapadeśāc ca

The line

And because he is named as the cause of that bliss, the blissful one is Brahman (ब्रह्मन्).

नेपालीमा

र ऊ त्यो आनन्दको कारण भनेर नाम लिइएकाले आनन्दमय ब्रह्म हो।

Where it sits

ānandamayaḥ (आनन्दमयः) from 1.1.13 remains the one who is so designated. tat is the bliss of that same passage.

Split: tad-dhetu-vyapadeśāt (तद्-धेतु-व्यपदेशात्) + ca (च)

Sanskrit, in depth

The words

WordGrammarSense
tad-dhetu-vyapadeśāt (तद्-धेतु-व्यपदेशात्)ablative singular, masculinebecause it is designated as the cause of that
ca (च)indeclinableand

The phrases

tat is bliss. hetu is cause. The text calls him the flavor: having reached it, one becomes blissful. A product sitting inside the person does not answer as the cause of bliss.

ca adds this to abhyāsa (अभ्यास) and to prācurya (प्राचुर्य). The designation, vyapadeśa (व्यपदेश), is the text's own naming, not an inference.

Sanskrit in this line

tad plus hetu: d doubles after a short vowel in the compound, so the word is taddhetu. Before ca, t becomes c.

Say it back

Gloss hetu here as the cause of bliss, not the cause of the world.

Next

1.1.16. The mantra portion sings this same blissful Brahman (ब्रह्मन्).