One verse

Srimad Bhagavatam 11.24.17

11.24.17

यस्तु यस्यादिरन्तश्च स वै मध्यं च तस्य सन् । विकारो व्यवहारार्थो यथा तैजसपार्थिवाः ॥ १७ ॥

yas tu yasyādir antaś ca sa vai madhyaṁ ca tasya san vikāro vyavahārārtho yathā taijasa-pārthivāḥ

yaḥ
which (cause)
tu
and
yasya
of which (product)
ādiḥ
the beginning
antaḥ
the end
ca
and
saḥ
that
vai
indeed
madhyam
the middle
ca
and
tasya
of that product
san
being (real)
vikāraḥ
the transformation
vyavahāra-arthaḥ
for ordinary purposes
yathā
as
taijasa
things produced from gold (which is itself derived from fire)
pārthivāḥ
and things produced from earth

Gold and earth are originally existing as ingredients. From gold one may fashion golden ornaments such as bracelets and earrings, and from earth one may fashion clay pots and saucers. The original ingredients gold and earth exist before the products made from them, and when the products are eventually destroyed, the original ingredients, gold and earth, will remain. Thus, since the ingredients are present in the beginning and at the end, they must also be present in the middle phase, taking the form of a particular product to which we assign for convenience a particular name, such as bracelet, earring, pot or saucer. We can therefore understand that since the ingredient cause exists before the creation of a product and after the product’s destruction, the same ingredient cause must be present during the manifest phase, supporting the product as the basis of its reality.