These are the concluding words from he previous blog post of October 25th:
The Qualifications of the Disciples Following a Master

These are described in the “Self-Arisen Awareness” as follows:
They show no honor or respect,
They pervert the secret mantras in their conduct,
They have neither the qualities of family and lineage nor a good character,
Are quite unintelligent,
Scorn kindness,
And make a meaningless mess of things.
Such disciples, unexamined, are the enemies of a teacher.

And the Omniscient One says:
On the other hand, disciples with bad fortune are the basis for all faults.
They have no faith, no sense of shame or decency, and little compassion;
Their family, nature, and behavior reflect their evil fortune.
Their minds and actions are grossly affected by the five poisonous emotions,
They break the precepts, confusing Dharma and non-Dharma, good and evil;
They fail to keep their vows and commitments and have no antidotes.
Extremely stupid and unintelligent, they are difficult to satisfy,
Their anger and harsh words ever on the increase.
These disciples follow the teacher with five wrong notions:
Seeing the teacher as a deer, the teachings as musk,
Themselves as hunters, their intense practice as a form of shooting,
And the result—the accomplishment of the Dharma—as something to be traded.
Because they do not keep the commitments they will suffer in this life and the next.
Some begin unthinkingly without first examining the teacher;
For the novelty of it, they talk about his good qualities, but later they criticize.
Others are two-faced, deceitful hypocrites,
Slyly trying to get the better of the teacher’s closest disciples.
All this results in birth in the Hell of Ultimate Torment.

Such disciples of evil destiny care vessels for numerous faults. They have little faith and hardly any shame with regard to themselves, decency with regard to others, or compassion. They are of an evil family and bad-natured. They conduct themselves badly and have little fortune. Their minds and afflictive emotions are very gross. They break the precepts and confuse positive and negative actions. They do not keep their vows or commitments. They have no control over their afflictive emotions and are ignorant of the antidotes. They are not very intelligent and are difficult to please. They get angry and shout over trifles. They are naturally diligent in non-Dharmic activities. They betray the Buddha, disgrace the Dharma, and destroy the Sangha. When they seek teachings from the teacher, since their minds are not at all at peace, they harm and despise everyone, like hunters. They think, “Apart from the fact that I am receiving this particular transmission from him, the master has this fault and that defect—he’s no better than an animal,” and, wanting to be better than others in having heard the teaching, they treat it like musk. Before they have even finished receiving the teaching, they transmit it and sell it—as a favor to others, or because they despise it, or for the sake of some small reward. Such disciples will be unlucky in this life, and in the next life they will have to wander in the lower realms, as is explained in the commentary on the “Tantra That Establishes the Three Commitments”:

Those who criticize a diamond master of the secret mantras,
Who abuse the Dharma and exchange it for riches,
And though they know the commitments, do not keep them
Will, in this life, suffer from a short life span,
The decline of their splendor and good fortune,
And the punishments of the dakinis.
In the next life, they will fall into the lower realms.

In the first place, teacher and disciple accept each other without each examining the other. Then, although the disciples, for the novelty of it, may show respect and make gifts to the teacher, they get angry over circumstantial trifles, crying insults and being rude. Even if they stay alone, they find fault in the slightest thing and discourage all the teacher’s close disciples. Some disciples may praise their teachers in their presence and make a false show of devotion, but in their minds there is neither faith nor respect, and they are secretly using their artful ways to play them false. Because of all this, and because they criticize their teachers, the negative consequences are boundless, as the “Fifty Verses” shows:

Who will endure the terrifying hells,
The Hell of Ultimate Torment and others?
Those who speak ill of the master:
As has been well explained, it is there they will remain.

For this reason teacher and disciple must first examine each other thoroughly, and not begin anything without prior deliberation. As the same work points out,

Since teacher and disciples
Will break the commitments equally,
The brave must first check the connection
Between master and disciple.

If this is not apparent within a short time, then, as the explanatory tantra the “Diamond Necklace” says, they will need to check each other over a long period:

Examine for up to twelve years.

Such examination must be carried out before any connection is made through empowerment or teaching. But once one has received an empowerment or teaching, even if one’s teachers have broken their vows by committing all four radical defeats, it is improper to examine them or lose faith, or do anything but regard them as objects of devotion and respect. As it is said,

If you don’t consider as your teachers
Those from whom you’ve heard a single verse,
It’s as a dog you’ll be reborn a hundred times,
And as an outcast, you’ll take birth.

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Kyabje Dudjom Rinpoche
A Torch Lighting the Way to Freedom: Complete Instructions on the Preliminary Practice of the Profound and Secret Heart Essence of the Dakini
Padmakara Translation Group