Bhagavad Gita 6.12

तत्रैकाग्रं मनः कृत्वा यतचित्तेन्द्रियक्रियः।उपविश्यासने युञ्ज्याद्योगमात्मविशुद्धये॥

tatraikāgraṃ manaḥ kṛtvā yatacittendriyakriyaḥ |upaviśyāsane yuñjyādyogamātmaviśuddhaye ||

There, having made the mind one-pointed, with the actions of the mind and senses controlled, let him, seated on the seat, practice Yoga for the purification of the self.

Seated thus, with his mind concentrated, his functions controlled, and his senses governed, let him practice meditation for the purification of his lower nature.

Our plain-language meaning of this verse is waiting for scholar review.