Sankaracarya's Vivekachudamani 399

स्वात्मन्यारोपिताशेषाभासर्वस्तुनिरासतः ।

स्वयमेव परं ब्रह्म पूर्णमद्वयमक्रियम् ॥

svātmanyāropitāśeṣābhāsarvastunirāsataḥ |

svayameva paraṃ brahma pūrṇamadvayamakriyam ||

(Sankaracarya's Vivekachudamani 399)

When the apparent realities superimposed on the Self are removed, then what remains is the Supreme Brahman, the Infinite, Non-dual, actionless, alone, all by itself.

By nature, every living entity is joyful and in Bhakti, but due to association with material contamination, certain souls have gotten their joyful spiritual nature covered up by the cloud of Maya(illusion) As soon as we remove this cloud of Maya from their consciousness and resume their natural, blissful life of rendering devotional service to the Supreme Personality of Godhead.