Four Yogas Of Mahamudra:

III. Yoga of One-Taste. Purify mind by proper application of the outer phenomena

In general, one-taste means the stability of practice. In practical aspect it is the optimum way of interaction of the inner and the outer (of our perceptions and of the objects, which cause them).
Then, as we are talking about contact again, what is a difference between one-taste and simplicity? In the contact of simplicity we are learning to interpret rightly that, which is going on in us aroused by the objects of the outer world; we are watching the own mind and are learning to react to the events of the outer world rightly. In one-taste we are directly applying different outer phenomena to spontaneously purify our mind with their arising.
The two very important moments in the yoga of one-taste are ridding oneself of lust and of arrogance.
Lust is a sign of the weakness of a vessel: either body-vessel, or mind-vessel, or the both.
Weakness causes the flowing out. It's the flowing out of liveliness of perception, the flowing out of the essence.

To prevent the flowing out we are to concentrate upon three following stages of realization:

  1. Realization that the very sense of pleasure by its own nature is more pleasant than the objects that cause it.
  2. Realization of the moment of lust as the moment of the vessel's weakness. Such very understanding preserves from the flowing out.
  3. Realization of the very essence of lust as the diamond-like quality of mind, since just desire and lust reveal the richness and liveliness of this world in us.

If our meditation embraces all the three stages, then:

  1. At the first stage we attain the right approach of the mind and the right attitude to our practice.
  2. At the second stage the self-restoration is attained, as the ego undergoes the process of shrinking. It can be compared to the ability of trees to shrink their pores to lessen evaporation when it is hot, which protects them from drying up.
    As a result of such shrinking we gain the more sober understanding of the own needs, the healthier proportions. Our desires become of more rational and controlled character.
  3. As the innate light of our mind lightens the richness and liveliness of all phenomena, the flowing out would be ceased due to the spontaneous concentration on the richness of the own mind's nature. Thus the quality called non-deviation from the own nature is attained.

When one is on the path, arrogance usually becomes the factor that distorts it (the path). On one hand, spiritual progress makes the arising of superiority-sense unavoidable, on the other, it is vitally important to correct it. And the pride of the path is the subtlest and the most hardly exterminated.
The method we use to exterminate arrogance of all kinds (emotional, mental and the pride of the path) is just to observe as it rises up in us whenever we are in contact with the world (for example, watching passers-by and getting aware of emotions this arouses in us). And the moment we become aware of it we are to realize that the superiority-sense is nothing else, but suffering. We are to realize that this feeling is more evil then the evil of the world that arouses it. In such way the outer evil washes away our inner evil, the phenomena of the world purify our mind.