Chapter 14: Sloka 27

14.27

brahmaṇo hi pratiṣṭhāham
amṛtasyāvyayasya ca
śāśvatasya ca dharmasya
sukhasyaikāntikasya ca

brahmaṇaḥ—of the impersonal brahmajyoti; hi—certainly; pratiṣṭhā—the rest; aham—I am; amṛtasya—of the imperishable; avyayasya—immortal; ca—also; śāśvatasya—of eternal; ca—and; dharmasya—of the constitutional position; sukhasya—happiness; aikāntikasya—ultimate; ca—also.

And I am the basis of the impersonal Brahman, which is the constitutional position of ultimate happiness, and which is immortal, imperishable and eternal.