om ajnana-timirandhasya jnananjana-salakaya caksur unmilitam yena tasmai sri-gurave namah
"I was born in the darkest ignorance, and my spiritual master opened my eyes with the torch of knowledge. I offer my respectful obeisances unto him."
Bhagavad-gita is also known as Gitopanishad. It is the essence of Vedic knowledge and one of the most important Upanishads in Vedic literature. Of course there are many commentaries in English on the Bhagavad-gita, and one may question the necessity for another one. This present edition can be explained in the following way. Recently an American lady asked me to recommend an English translation of Bhagavad-gita. Of course in America there are so many editions of Bhagavad-gita available in English, but as far as I have seen, not only in America but also in India, none of them can be strictly said to be authoritative because in almost every one of them the commentator has expressed his own opinions without touching the spirit of Bhagavad-gita as it is.
The spirit of Bhagavad-gita is mentioned in Bhagavad-gita itself. It is just like this: If we want to take a particular medicine, then we have to follow the directions written on the label. We cannot take the medicine according to our own whim or the direction of a friend. It must be taken according to the directions on the label or the directions given by a physician. Similarly, Bhagavad-gita should be taken or accepted as it is directed by the speaker Himself. The speaker of Bhagavad-gita is Lord Sri Krishna. He is mentioned on every page of Bhagavad-gita as the Supreme Personality of Godhead, Bhagavan. Of course the word bhagavan sometimes refers to any powerful person or any powerful demigod, and certainly here bhagavan designates Lord Sri Krishna as a great personality, but at the same time we should know that Lord Sri Krishna is the Supreme Personality of Godhead, as is confirmed by all great acaryas (spiritual masters) like Shankaracarya, Ramanujacarya, Madhvacarya, Nimbarka Svami, Sri Caitanya Mahaprabhu and many other authorities of Vedic knowledge in India. The Lord Himself also establishes Himself as the Supreme Personality of Godhead in the Bhagavad-gita, and He is accepted as such in the Brahma-samhita and all the Puranas, especially the Srimad-Bhagavatam, known as the Bhagavata Purana (krishnas tu bhagavan svayam). Therefore we should take Bhagavad-gita as it is directed by the Personality of Godhead Himself. In the Fourth Chapter of the Gita (4.1–3) the Lord says:
sa evayam maya te ’dya yogah proktah puratanah bhakto ’si me sakha ceti rahasyam hy etad uttamam
Here the Lord informs Arjuna that this system of yoga, the Bhagavad-gita, was first spoken to the sun-god, and the sun-god explained it to Manu, and Manu explained it to Ikshavaku, and in that way, by disciplic succession, one speaker after another, this yoga system has been coming down. But in the course of time it has become lost. Consequently the Lord has to speak it again, this time to Arjuna on the Battlefield of Kurukshetra. These can be read in
