Mystical. Surroundings, land, world.
The Guardian influences the environment, not himself. These are people who work with places and nature, often with an almost druidic stance. They are guardians of the land and at the same time connected to it.
To manifest his path properties, he tunes himself to his surroundings and connects with it. This is done through a Nature check, the successes of which affect the effect of the path property.
Examples: The Faidth of Mars, which have led the tribes through the deserts for generations, or the Druids of the Earth, who fight against Aetherit pollution underground.