तत्रैकाग्रं मनः कृत्वा यतचित्तेन्द्रियक्रियः। उपविश्यासने युञ्ज्याद्योगमात्मविशुद्धये
tatraikāgraṁ manaḥ kṛitvā yata-chittendriya-kriyaḥ upaviśhyāsane yuñjyād yogam ātma-viśhuddhaye
Seated thus, with his mind concentrated, his functions controlled, and his senses governed, let him practice meditation for the purification of his lower nature.
Translated by Shri Purohit Swami
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.
Translated by Swami Sivananda
Word meanings (from the gita/gita dataset)
tatra—there; eka-agram—one-pointed; manaḥ—mind; kṛitvā—having made; yata-chitta—controlling the mind; indriya—senses; kriyaḥ—activities; upaviśhya—being seated; āsane—on the seat; yuñjyāt yogam—should strive to practice yog; ātma viśhuddhaye—for purification of the mind;