Verse 21

सत्स्वनन्तपदार्थेषु जीवत्वेनाभिबिम्बति ।आत्मा पुर्यष्टकादर्शे स्वभाववशतः स्वतः

In plain words

Amid the endless things that exist, the Self is mirrored as jīva, in the mirror of the puryaṣṭaka, by the force of its own nature, of itself.