Bhagavad Gita 2.68
तस्माद्यस्य महाबाहो निगृहीतानि सर्वशः। इन्द्रियाणीन्द्रियार्थेभ्यस्तस्य प्रज्ञा प्रतिष्ठिता॥
tasmād yasya mahā-bāho nigṛihītāni sarvaśhaḥ indriyāṇīndriyārthebhyas tasya prajñā pratiṣhṭhitā
Translation
Therefore, O mighty-armed, whose senses are all completely restrained from the objects of sense, of him the understanding is well poised.
What it means
Therefore, one whose senses are fully withdrawn from their objects has firm understanding. The conclusion of the chain: steadiness is possible and it is trained, not wished into being.
Try this today
The conclusion of the discipline passage: mastery of inputs is the foundation of stable judgment.
Something to reflect on
What input would I have to master before my judgment could steady?
Read it in Yathora