In the Shravakayana and the Mahayana, master or the guru only acts as a guide. Well, what we usually think about the guru is what, how Shravakayana and Mahayana – causal path anyway, that’s how they use the guru so to speak. But in the Vajrayana, not only as a master, not only as a guide, guru is the path. That is what is meant guru yoga. Guru is the path. Of course at every level of the Vajrayana practice taking the guru as the path is important. Even the most sort of, the highest level of the Vajrayana practice, in the Nyingmapa tradition for instance like ati yoga, when you reach to the maha ati, Jigme Lingpa said, for someone who can actually remember the guru, for this person the mindfulness – you know in the maha ati practice mindfulness, or the rigpa or drenpa is very important. Mindfulness, awareness, mere awareness, this is very important. Jigme Lingpa said, to really practice this mindfulness which is something quite abstract, is difficult. So for someone who can remember the guru, mindfulness is already there. So from this statement, many times, many Dzogchen masters like Jigme Lingpa will not differentiate between mindfulness and the guru also. Guru is the mindfulness. This is what makes the guru yoga special in the Vajrayana.