Verse 54

अखिलमिदमनन्तमात्मतत्त्वंदृढपरिणामिनि चेतसि स्थितेऽन्तः ।बहिरुपशमिते चराचरात्मास्वयमनुभूयत एव देवदेवः

In plain words

This whole, boundless tattva of the Self — when the citta stands firm, its transformation steady, within, and is stilled outwardly — is experienced of itself: the god of gods, the Self of all that moves and moves not.