Spiritual teachers and Yoga
A Yoga path is commonly associated with a spiritual teacher or guru. Through out time there have been many teachers each bringing their own understanding of a how to approach the aim of Yoga, namely the consciously discerned connection of spirit, soul and the physical body.

Below shows a timeline of notable Spiritual teachers connected to the Yoga path, both in the East and West. 

In the Bhagavad Gita, a key Hindu text connected to the path of Yoga, we see Lord Krisna describing to Arjuna the importance of finding a guru, 
he says:

‘Acquire the transcendental knowledge from a Self-realized master by humble reverence, by sincere inquiry, and by service. The wise ones who have realized the Truth will impart the Knowledge to you. [verse 18]’  Bhagavad Gita. 

In the West we are more experienced in the relationship to a teacher for various subjects or topics, like a teacher in English language or a teacher in Mathematics, less commonly known is the relationship to a spiritual teacher, this is more common in the East. In India, for example, the relationship to a holy teacher is a usual part of everyday life. In the West, however, perhaps people seek spiritual guidance from a priest, or from a so-called holy person connected to an organised religion, like the Dali Lama, or a local Rabi. Or perhaps people seek guidance from spiritual scriptures, which today are available from all over the world from all sorts of teachers.

But still, today how does this relationship to a spiritual teacher or a spiritual scripture look? How does the pupil, or student bring themself to a spiritual source in order to meet the aim of yoga? How can the person encourage their soul life to consciously discern between the worlds of spirit, soul and body in a harmonious connection?

The path of Yoga today requires the inspirations from an authentic spiritual source, through which a person can consciously discern with the forces of the soul, a connection between spirit and body. Without the spiritual source, the activity of discerning with the soul life cant take place, as there’s nothing to discern against. The training of the soul life, to think, to feel and to act needs a truth filled picture or thought to work with. Heinz Grill further suggests through active work to these 3 teachers we can encourage the development of the various forces of the soul, he suggests for the: