Who is a Guru ?

çrotriyo'våjino'kämahato yo brahmavittamaù |

brahmaëyuparataù çänto nirindhana ivänalaù |

The Guru should be one who has studied the scriptures from the Tradition, should not be endowed with Sin (sinful actions), has gained victory on the desires, and the knower of the pure Self, and ever established in it and therefore tranquil, like the fuel less fire.

Shrotriya  is an important quality. Without the knowledge of the Brahman gained in the traditional way, if it is mystical, will not be able to guide or sometimes guide the disciple in a wrong way. In Bhagawad gita bhashya it is said “asampradayavid sarvashastragnopi murkavad upekshaniya” (the one who has not studied in a tradition, though is a master in the other shastras should be ignored lika aa idiot).

Avrajina sinless, sin is not an object of sense organ, therefore it cannot be found out, if be said, the actions are the pointer to the inner karma imprint, therefore in whom there is no wrong action, understand him to be sinless.

Akamahata – desireless. But than, the desire for moksha is also a desire, therefore there cannot be vairagya (dispassion) in the disciple too?  No, the desire for Self is like the desire for the spectacles in one bridge of the nose. It is not lost, but unknown due to ignorance, in the same way, we are the Self, but due to ignorance it is not known. This is not an attainment of unattained, but the as though attainment of the already attained. In the case of the Guru, he has attained that which needs to be gained. And since there is nothing other than him, he cannot have desire or hatred for other.

First it is said, brahmaviduttama dna again brahmani uparata, what is the difference between them ? once there is the knowledge the Brahman shines without any obstacle, but because of the previous imprints (vasana) he fails to be established in it. So, the rest of the life becomes the effort to establisg in it. And once that is done he becomes one with the Brahman. And that is why it is said shantam tranquil, he is tranquil because the Brahman is tranquil “shantam shivam advaitam” (tranquil auspicious nondual) is the Self.

When ther is another object other than the Self, there exists the desire to gain it, but when there is nothing other than the Self, there is no disturbance because of the imprints.

it is said "the Guru should be the one whoe removes the ignorance of the disciple and not impose his own ignorance on him"