etāḿ vibhūtiḿ yogaḿ ca
mama yo vetti tattvataḥ
so ’vikalpena yogena
yujyate nātra saḿśayaḥ
Translation of Bhagavad Gita 10.7
One who is factually convinced of this opulence and mystic power of Mine engages in unalloyed devotional service; of this there is no doubt.
Commentary by Sri A.C. Bhaktivedanta Swami Prabhupada of Gaudiya Sampradaya:
The highest summit of spiritual perfection is knowledge of the Supreme Personality of Godhead. Unless one is firmly convinced of the different opulences of the Supreme Lord, he cannot engage in devotional service. Generally people know that God is great, but they do not know in detail how God is great. Here are the details. If one knows factually how God is great, then naturally he becomes a surrendered soul and engages himself in the devotional service of the Lord. When one factually knows the opulences of the Supreme, there is no alternative but to surrender to Him. This factual knowledge can be known from the descriptions in Srimad-Bhagavatam and Bhagavad-gita and similar literatures.
In the administration of this universe there are many demigods distributed throughout the planetary system, and the chief of them are Brahma, Lord Shiva and the four great Kumaras and the other patriarchs. There are many forefathers of the population of the universe, and all of them are born of the Supreme Lord, Krishna. The Supreme Personality of Godhead, Krishna, is the original forefather of all forefathers.
These are some of the opulences of the Supreme Lord. When one is firmly convinced of them, he accepts Krishna with great faith and without any doubt, and he engages in devotional service. All this particular knowledge is required in order to increase one’s interest in the loving devotional service of the Lord. One should not neglect to understand fully how great Krishna is, for by knowing the greatness of Krishna one will be able to be fixed in sincere devotional service.
Commentary by Sri Vishvanatha Chakravarthi Thakur of Gaudiya Sampradaya:
But according to my own statement bhaktyaham ekaya grahyah: I am obtained only by pure bhakti. (SB 11.14.21) Only my ananya bhakta, receiving firm faith in my words by my mercy, knows the truth about me. That is stated in this verse.
He who knows the vibhutis of which I am speaking in summary and bhakti yoga (etam vibhutim yogam ca); who then becomes endowed with even stronger faith, thinking “This alone is the highest truth (tattvatah), because my master Krishna has said so,” becomes endowed with unwavering (avikalpena) bhakti yoga in the form of knowledge of my true nature (yogena). There is no doubt about this.
Commentary by Sri Ramanuja of Sri Sampradaya:
10.7 ‘Supernal manifestation’ is the glory (Vibhuti) of the Lord. He who in truth knows this supernal manifestation that all origination, sustentation and activity depend on Me, and also that Yoga of Mine which is in the form of auspicious attributes antagonistic to all that is evil — such a person becomes united with the Yoga or Bhakti of an unshakable nature. Of this, there is no doubt. The meaning is: You yourself will see that the knowledge concerning the supernal manifestation and auspicious attributes of Mine will increase devotion. Sri Krsna now shows that the growth of devotion is of the form of the development of knowledge of His supreme state.
Commentary by Sri Sridhara Swami of Rudra Sampradaya:
The result of actual knowledge about the glory, majesty and power of the Supreme Lord Krishna that has been expounded as well as rendering bhakti or loving devotion to Him is that one attains undeviating realization of His supreme absolute position and all that is related to it. There is no doubt about this.
Commentary by Sri Madhvacharya of Brahma Sampradaya:
The method by which one’s aspirations are made available is known as equanimity. The equanimity of the Supreme Lord is also known as sakti or power. A special manifestation of this sakti is called vibhuti or supernatural opulence. To attain this yogam or the science of the individual consciousness attaining communion with the ultimate consciousness of the Supreme Lord is also a manifestation of vibhuti.
Commentary by Sri Keshava Kashmiri of Kumara Sampradaya:
Now Lord Krishna speaks on the benefits of knowing Him in reality as the great sages spoken previously do, as the Supreme transcendental majestic Lord of all. This is stated with the words yo vetti tattvatah meaning those who know in truth, regarding His transcendental potencies and divine opulence and how they manifest, direst and sustain the whole creation. Such one’s like the great sages will undoubtedly become established in undeviating yoga or the science of the individual consciousness attaining communion with the Ultimate Consciousness of the Supreme Lord.
Commentary by Sri Adi Shankaracharya of Advaita Sampradaya:
10.7 Yah, one who; vetti, knows; tattvatah, truly, i.e. just as it is; etam, this, aforesaid; vibhutim. majesty, (divine) manifestations; [Omnipresence.] and yogam, yoga, action, My own ability to achieve [God’s omnipotence. (God’s power of accomplishing the impossible.-M.S.)]-or, the capacity for mystic powers, the omniscience resulting from yoga (meditation), is called yoga; sah, he; yujyate, becomes imbued with; avikampena, unwavering; yogena, Yoga, consisting in steadfastness in perfect knowledge. [After realizing the personal God, he attains the transcendental Reality; the earlier knowledge leads to the latter.] There is no samsayah, doubt; atra, about this. With what kind of unwavering Yoga does he become endued? This is being answered:
Commentary by Sri Abhinavagupta of Kaula Tantra Sampradaya:
10.7 See Comment under 10.11
Sanskrit Shloka Without Transliteration Marks:
etam vibhutim yogam ca
mama yo vetti tattvatah
so ’vikalpena yogena
yujyate natra samsayah
Sanskrit to English Word for Word Meanings:
etām — all this; vibhūtim — opulence; yogam — mystic power; ca — also; mama — of Mine; yaḥ — anyone who; vetti — knows; tattvataḥ — factually; saḥ — he; avikalpena — without division; yogena — in devotional service; yujyate — is engaged; na — never; atra — here; saḿśayaḥ — doubt.