Bhagavad Gita, Chapter 2, Verse 58

यदा संहरते चायं कूर्मोऽङ्गानीव सर्वशः । इन्द्रियाणीन्द्रियार्थेभ्यस्तस्य प्रज्ञा प्रतिष्ठिता

yadā saṃharate cāyaṃ kūrmo'ṅgānīva sarvaśaḥ | indriyāṇīndriyārthebhyastasya prajñā pratiṣṭhitā

Translation

When he completely withdraws the senses from sense-objects, as the tortoise (withdraws) its limbs from all sides, his knowledge is steady.

— Alladi Mahadeva Sastri

Word meanings

yadā
when
saṃharate
draws in
ca
and
ayam
this one
kūrmaḥ
tortoise
aṅgāni
limbs
iva
as like
sarvaśaḥ
everywhere
indriyāṇi
the senses
indriyārthebhyaḥ
of the senses, from the objects
tasya
of him
prajñā
the intelligence
pratiṣṭhitā
(is) established

Śaṅkarācārya's commentary

When, like the tortoise that draws in its limbs from every side, he withdraws the senses from sense-objects on every side, his knowledge is steady. The tortoise withdraws not in flight but in self-possessed mastery; just so the wise man withdraws not because he is overcome by objects but because he is in full command of his senses.