Primal Power

Primal power is one of the three methods of channeling magic for the people of Thaerrathas.
All magic relates to channeling energy of Souls, primarily dealing with manipulating the Souls of the natural world around you, but it can also include your own Soul or the Souls of other creatures. Primal power relates to the communication and cooperation with the Souls of the natural world. Druids, Rangers, and Bards fall under practitioners of Primal Power, additionally Barbarians who have access to magical abilities could fall under this category.
This article isn't meant to constrain how player choice, but rather to make it clear how certain Spellcasters are seen by the world around them.
Rangers use magic to defend the Order or Civilization from the Chaos of Nature. Nature, the chaos, respects power. Survival of the Fittest. Rangers commune with the spirits of the natural world on a fundamental level, expressing the quality of their abilities and thusly imposing an authority over the spirits of the natural world on a level they understand and accept.
Druids sit in the middle of Civilization and Nature to negotiate a balance. They speak for the natural spirits of the world as much as they do for the people of the world. If the natural world is being defiled there is a good chance a Druid will show up to correct things, and likewise, if a Settlement or Stronghold has a Druid inhabitant there is a good chance that the spirits of the natural world won't have reason to run amok.
Bards coerce Nature to do their bidding. Bard’s sing the song of the world. There is a rhythm to the world and music in everything. Music is life. Things live by a rhythm and bards tap into that. Heartbeats are a rhythm. How you walk has a rhythm, how you breath, blink, talk, chew, how the wind blows or water flows has rhythm, how birds sing, bugs chirp, wolves howl. By playing music, Bards directly interact with the Souls of everything around them, manipulating them on a subconscious level.