Sankaracarya's Vivekachudamani 446

अत्यन्तकामुकस्यापि वृत्तिः कुण्ठति मातरि ।

तथैव ब्रह्मणि ज्ञाते पूर्णानन्दे मनीषिणः ॥

atyantakāmukasyāpi vṛttiḥ kuṇṭhati mātari |

tathaiva brahmaṇi jñāte pūrṇānande manīṣiṇaḥ ||

(Sankaracarya's Vivekachudamani 446)

The propensities of even a downright rake are checked in the presence of his mother. So too, there are no more any worldly propensities in one who has realized Brahman, the Bliss Absolute.

For every living being their mother is the greatest, there is a say in Arab 'heaven is under the feet of mothers' similarly those who realizes the Supreme Lord the source of all the source will not seek anything else. That is the greatest comfort. Such a person will not go back to the lower taste of this material life.