8.28 वेदेषु in the Vedas, यज्ञेषु in sacrifices, तपःसु in austerities, च and, एव also, दानेषु in gifts, यत् whatever, पुण्यफलम् fruit of merit, प्रदिष्टम् is declared, अत्येति goes beyond, तत् that, सर्वम् all, इदम् this, विदित्वा having known, योगी the Yogi, परम् Supreme, स्थानम् abode, उपैति attains, च and, आद्यम् primeval (first, ancient).

Commentary:
The glory of Yoga is described in this verse. Whatever meritorious effect is declared in the scriptures to accrue from the proper study of the Vedas, from the performance of sacrifices properly, from the practice of austerities -- above all these rises the Yogi who rightly understands and follows the teaching imparted by Lord Krishna in His answers to the seven estions put by Arjuna, and who meditates on Brahman. He attains to the Supreme Abode of Brahman Which existed even in the beginning (primeval), and is the first or ancient.Idam Viditva Having known this. Having known properly the answers given by the Lord to the seven estions put by Arjuna at the beginning of this chapter.(This chapter is known by the name Abhyasa Yoga also.)Thus in the Upanishads of the glorious Bhagavad Gita, the science of the Eternal, the scripture of Yoga, the dialogue between Sri Krishna and Arjuna, ends the eighth discourse entitledThe Yoga of the Imperishable Brahman. ,