गोविन्द भाष्य (श्रील बलदेव विद्याभूषण - अचिन्त्यभेदाभेद वेदान्त ब्रह्मसूत्र भाष्य सटीक)

Sūtra 24
tathā caika-vākyatopabandhāt
tathā—so; ca—and; eka—one; vākyatā—statement; upabandhāt—because of
the connection.
It is also so because of the unity of the statements.
Purport by Śrīla Baladeva Vidyābhūṣaṇa
Because they are not pāriplava stories, it is should be understood that the
stories of the Upaniṣads are meant to teach transcendental knowledge. Why is
that? The sūtra explains, “eka-vākyatopabandhāt" (because of the unity of the
statements). Thus in the story beginning with the description of Yājñavalkya and
his wives it is said (Bṛhad-āraṇyaka Upaniṣad 4.4.22):
ātmā vā are draṣṭavyaḥ śrotavyaḥ
"One should hear of the Supreme Personality of Godhead. One should gaze
upon Him."
It this way it is seen that because of their context these stories are meant to
teach transcendental knowledge. As the story beginning with the words "so 'rodīt"
is a story meant to teach Vedic rituals and is not a pāriplava story, so the stories of
the Upaniṣads are meant to teach transcendental knowledge. That is the meaning.
Because it teaches the supreme goal of life, transcendental knowledge is
independent of Vedic rituals. Great saints therefore strive to attain transcendental
knowledge. The stories of the Upaniṣads give concrete examples of the truths of
transcendental knowledge. For example, they will give concrete examples to show
the truth of the Śruti-śāstras' statement (Chāndogya Upaniṣad 6.14.2):
ācāryavān puruṣo veda
"One who approaches a bona fide spiritual master can understand everything
about spiritual realization."*
In this way also it is seen that transcendental knowledge is independent of
Vedic rituals.