18:46  

यतः प्रवृत्तिर्भूतानां येन सर्वमिदं ततम् ।
स्वकर्मणा तमभ्यर्च्य सिद्धिं विन्दति मानवः ॥१८- ४६॥

Transliteration

yataH prawRRittirbhootaanaaM yena sarwamidaM tatam ।

swakarmaNaa tamabhyarchya siddhiM windati maanawaH ॥१८- ४६॥

Translation

That which is the origin of beings, by which all this is pervaded,
Worshipping but that by one's actions, a mortal achieves accomplishments.

Translation

He from whom all beings originate, and by whom all this universe is pervaded; worshipping Him by performing one's natural duty for Him one attains perfection. (See also 9.27, 12.10)

Translation

By worship of the Lord, who is the source of all beings and who is all-pervading, man can, in the performance of his own duty, attain perfection.