Bhagavad-Gita: Chapter 8, Verse 27

Rudra Vaisnava Sampradaya:

Visnuswami

Sridhara Swami's Commentary

By explaining the result of knowledge regarding the path of light which leads to moksa or liberation and the path of darkness which leads to samsara or the perpetual cycle of birth and death, this subject is being concluded by Lord Krishna. The yogi or one perfecting the science of the individual consciousness attaining communion with the ultimate consciousness, who understands the reality of these two paths is never deluded by maya or illusory impressions superimposed upon the mind. This means such a yogi never deviating from their devotion to the Supreme Lord does not hanker or even consider pleasures in this world or heaven or anything in all creation that is not for the sole satisfaction of the Supreme Lord. Such a yogi is devoted to the Supreme Lord and nothing else.

Brahma Vaisnava Sampradaya:

Madhvacarya
There is no commentary for this verse.

Sri Vaisnava Sampradaya:

Ramanuja

Ramanuja's Commentary

Lord Krishna declares that knowing the archi-adi the path of light which leads to moksa or liberation from material existence and the path of darkness which leads to bondage in the material existence there will never be any infatuation and delusion at the time of death for a yogi or one perfecting the science of the individual consciousness attaining communion with the ultimate consciousness. Such a yogi will travel by their own self earned divine path escorted by the presiding demigods of the path of light. Thus one should with great faith and enthusiasm meditate on and perform selfless Vedic activities without desire that keeps one firmly upon this path. Daily meditation constitutes the proper performance of one's daily activities as authorised by the bonafide spiritual master either Vaisnava or Brahmana from one of the four bonafide sampradayas as revealed in Vedic scriptures.

Kumara Vaisnava Sampradaya:

Nimbaditya

Kesava Kasmiri's Commentary

The result of comprehending the two routes: both the path of light which gives moksa or liberation from material existence and the path of darkness which gives bondage to the material existence is that the yogi or one perfecting the science of the individual consciousness attaining communion with the ultimate consciousness, whether a jnani devoted to spiritual knowledge of the Supreme or a jijnasuh devoted to meditation on the atma or soul. Both becomes firmly established in equanimity and are never again deluded by maya or illusory impressions superimposed upon the mind. In other words they are clear as to what is to be done and what is not to be done in able to say continuously focused on the Supreme Lord. Such a yogi performs no actions with a desire to attain any rewards on Earth or even to reach the heavenly spheres by which desiring one is guaranteed rebirth again from another womb. Therefore the conclusion is to remain always attentive and established in yoga and traverse forever this ever changing, precarious material existence.