Difference between the kinds of Spellcasting

All magic as it is defined here, seems to be intrinsically linked with the living beings of the Material Plane.

Arcane Magic

(Artificer, Sorcerer, Warlock, Wizard): Arcane Magic involves manipulating the forces of the world to achieve arcane abilities. Arcane Mages seek to learn and understand their abilities more in an exploitive sense, rather than reaching harmony with the environment. An exception to this rule might be the Sorcerer or the Warlock (whose powers come from sources such as pacts or some other cosmic anomaly), but their magic is still generally something they desire to control. Unlike most magic abilities (with the exception being the Sorcerer), all of these arcane classes are accessible to the average man. They simply need to have the correct skill set.

Communal Magic

(Cleric, Ranger, Paladin, Druid): Communal Magic, also known as Divine or Primal Magic, Involves drawing your abilities in tandem with the powers of this world (or beyond). These powers may be a divine being (such as the Everflame, the El-han, etc.) or even from the latent energies of the material plane (such as magic channeled by the druidic circles). Traditionally, members of these classes believe in working in harmony with these higher beings, and will usually have some level of reverence to whichever higher power they may derive their abilities from.

Both

(Bard): Bards are an anomaly in the arcane spheres of the world. Their abilities seem intrinsically linked to the creation of the world, and yet it is also something they seek to learn and study.

Type

Metaphysical, Arcane