Shloka 17
Adhyāya 241: Guṇa-sṛṣṭi, Kṣetrajña-sākṣitva, and Śama through Ātma-jñāna (गुणसृष्टिः, क्षेत्रज्ञसाक्षित्वं, शमः)
एकादशविकारात्मा कलासम्भारसम्भृत: । मूर्तिमानिति तं विद्धि तात कर्मगुणात्मकम्
ekādaśa-vikārātmā kalā-sambhāra-sambhṛtaḥ | mūrtimān iti taṁ viddhi tāta karma-guṇātmakaṁ ||
ビーシュマは言った。「我が子よ、具身の者は『形を帯びる者』（mūrtimān）であり、業とグナの性質をもつと知れ。彼は十一の変相——心と諸根——から成り、業によって生じた諸分（kalā）の積み重なりを担う。ゆえに生類は作者として生を受け、業と三グナに形づくられ、月のように、身において増減盛衰を免れない。」
भीष्म उवाच
Educational Q&A
Embodiment is explained as karma-driven: the individual becomes ‘form-bearing’ by being constituted through the mind-and-senses complex (the ‘eleven modifications’) and by carrying the accumulated effects/constituents generated by past actions, all under the influence of the three guṇas.
In Śānti Parva’s instruction section, Bhishma continues advising Yudhiṣṭhira on the nature of the embodied self and the mechanics of saṁsāra, describing how action and guṇas condition the rise of a body and its experiences of growth and decline.