The question is asked by Arjuna in the Bhagavad Gita, in the following verses:
BG 2.54:अर्जुन उवाच |
स्थितप्रज्ञस्य का भाषा समाधिस्थस्य केशव |
स्थितधी: किं प्रभाषेत किमासीत व्रजेत किम् ||
Arjun said : O Keshav, what is the disposition of one who is situated in divine consciousness? How does an enlightened person talk? How does he sit? How does he walk?
BG 2.55:श्रीभगवानुवाच |
प्रजहाति यदा कामान्सर्वान्पार्थ मनोगतान् |
आत्मन्येवात्मना तुष्ट: स्थितप्रज्ञस्तदोच्यते ||
The Supreme Lord said: O Parth, when one discards all selfish desires and cravings of the senses that torment the mind, and becomes satisfied in the realization of the self, such a person is said to be transcendentally situated.
BG 2.58:यदा संहरते चायं कूर्मोऽङ्गानीव सर्वश: |
इन्द्रियाणीन्द्रियार्थेभ्यस्तस्य प्रज्ञा प्रतिष्ठिता ||
One who is able to withdraw the senses from their objects, just as a tortoise withdraws its limbs into its shell, is established in divine wisdom.
BG 2.59: विषया विनिवर्तन्ते निराहारस्य देहिन: |
रसवर्जं रसोऽप्यस्य परं दृष्ट्वा निवर्तते ||
Aspirants may restrain the senses from their objects of enjoyment, but the taste for the sense objects remains. However, even this taste ceases for those who realizes the Supreme.
BG 2.61: तानि सर्वाणि संयम्य युक्त आसीत मत्पर: |
वशे हि यस्येन्द्रियाणि तस्य प्रज्ञा प्रतिष्ठिता ||
They are established in perfect knowledge, who subdue their senses and keep their minds ever absorbed in me.
There's a mention of siddhis attained by a person in the 19th and 20th sutras, in the Siva Sutras by Vasugupta of the Trika School.
- Excerpts from Jaideva Singh: Siva Sutras: Yoga of the Supreme Reality