Now there is the teaching of the characteristics of the spiritual friend who teaches how to do these things that have just been explained:
The unerring cause and effect which is that of this excellent path
Arises from relating to the holy ones.
Knowing well what is Dharma and adharma, and good and bad comes from relying on the spiritual friend. The Gandavyuha Sutra says:
Kye, O son of noble family, you should please the spiritual friend. The spiritual friend, completely knowing the collections of merit and non-merit, when there is samsara, completely clears away its causes.