Vivekachudamani 342

सर्वात्मसिद्धये भिक्षोः कृतश्रवणकर्मणः । 

समाधिं विदधात्येषा शान्तो दान्त इति श्रुतिः ॥ ३४२ ॥

sarvātmasiddhaye bhikṣoḥ kṛtaśravaṇakarmaṇaḥ | 

samādhiṃ vidadhātyeṣā śānto dānta iti śrutiḥ || 

(Sankaracarya's Vivekachudamani 342) 

For the renunciant who has listened to the discourses upon the scriptures and who has cultivated 'calmness, self-control‘ etc., the Sruti prescribes samadhi for realizing that all is the Self. (sarvaatmasiddhaye) 

The stage of perfection is called trance, or samādhi, when one's mind is completely restrained from material mental activities by practice of yoga. This is characterized by one's ability to see the self by the pure mind and to relish and rejoice in the self. In that joyous state, one is situated in boundless transcendental happiness and enjoys himself through transcendental senses. Established thus, one never departs from the truth, and upon gaining this he thinks there is no greater gain. Being situated in such a position, one is never shaken, even in the midst of greatest difficulty. This indeed is actual freedom from all miseries arising from material contact. 

As long as the material body exists, one has to meet the demands of the body, namely eating, sleeping, defending, and mating. But a person who is in pure bhakti does not arouse the senses while meeting the demands of the body. Rather, he accepts the bare necessities of life, making the best use of a bad bargain, and enjoys transcendental happiness in Spiritual life. He is callous toward incidental occurrences-such as accidents, disease, scarcity, and even the death of a dearest relative-but he is always alert to execute his duties in bhakti. Accidents never deviate him from his duty. As stated in the Bhagavad-gītā, āgamāpāyino 'nityās tāṁs titikṣasva bhārata. He endures all such incidental occurrences because he knows that they come and go and do not affect his duties. In this way, he achieves the highest perfection in yoga practice.