Shloka 56

तया चाप्यभवन्मिश्रो गर्भ चास्यादधे तदा । ववृधे स तदा गर्भ: कक्षे कृष्णगतिर्यथा,वे वहाँ गंगाजीसे मिले। गंगाजीने उस समय भगवान्‌ शंकरके उस तेजको गर्भरूपसे धारण किया। जैसे सूखे तिनकों अथवा लकड़ियोंके ढेरमें रखी हुई आग प्रज्वलित हो उठती है, उसी प्रकार वह तेजस्वी गर्भ गंगाजीके भीतर बढ़ने लगा

tayā cāpy abhavan miśro garbha cāsyādadhē tadā | vavṛdhe sa tadā garbhaḥ kakṣe kṛṣṇagatir yathā ||

เขาได้รวมเป็นหนึ่งกับนาง; ในกาลนั้นเองพระแม่คงคาทรงรับครรภ์แห่งพลังนั้นไว้ แล้วครรภ์อันรุ่งเรืองก็เติบโตภายในนาง ดุจไฟที่ซ่อนอยู่ในโพรงหรือกองเชื้อเพลิง ครั้นได้ที่ก็ลุกโพลงขึ้นฉันนั้น

तयाby her (by that woman)
तया:
Karana
TypePronoun
Rootतद्
FormFeminine, Instrumental, Singular
and
:
TypeIndeclinable
Root
अपिalso
अपि:
TypeIndeclinable
Rootअपि
अभवत्became/occurred
अभवत्:
TypeVerb
Rootभू
FormImperfect, 3, Singular, Parasmaipada
मिश्रःmixed, combined
मिश्रः:
Karta
TypeAdjective
Rootमिश्र
FormMasculine, Nominative, Singular
गर्भःembryo, fetus
गर्भः:
Karta
TypeNoun
Rootगर्भ
FormMasculine, Nominative, Singular
and
:
TypeIndeclinable
Root
अस्यof him/its
अस्य:
TypePronoun
Rootइदम्
FormMasculine/Neuter, Genitive, Singular
आदधेplaced, bore, conceived
आदधे:
TypeVerb
Rootधा (आ-धा)
FormPerfect, 3, Singular, Atmanepada
तदाthen, at that time
तदा:
TypeIndeclinable
Rootतदा
ववृधेgrew, increased
ववृधे:
TypeVerb
Rootवृध्
FormPerfect, 3, Singular, Atmanepada
सःhe/that (embryo)
सः:
Karta
TypePronoun
Rootतद्
FormMasculine, Nominative, Singular
तदाthen
तदा:
TypeIndeclinable
Rootतदा
गर्भःthe embryo
गर्भः:
Karta
TypeNoun
Rootगर्भ
FormMasculine, Nominative, Singular
कक्षेin the armpit/side (lap/region)
कक्षे:
Adhikarana
TypeNoun
Rootकक्ष
FormMasculine, Locative, Singular
कृष्णगतिःblack-moving fire/black course (i.e., fire hidden in dark fuel)
कृष्णगतिः:
Karta
TypeNoun
Rootकृष्णगति
FormFeminine, Nominative, Singular
यथाas, just like
यथा:
TypeIndeclinable
Rootयथा

भीष्म उवाच

B
Bhishma
A
a woman (tayā; contextually Gaṅgā in the surrounding narrative)
E
embryo/fetus (garbha)
F
fire (implied by the simile: kṛṣṇagatiḥ)

Educational Q&A

Once potent energy—especially divinely sourced tejas—has been received and rightly contained, it naturally matures in due course; the simile of hidden fire suggests that power may be unseen at first yet inevitably manifests when conditions support it.

Bhishma describes a union leading to conception; the embryo is ‘deposited’ and then grows within the bearer, compared to fire that, though moving darkly/hidden, blazes up when lodged in a hollow or heap of fuel.