What is Magic?
With the issues of Necromancy and Sorcery behind us, let us return to fundamentals. Just what IS magic, and why should we care about it?
At the dawn of the universe, when all was shapeless, there was war. A War between life and death, light and dark, birth and eternal stillness. Selune, she of the moon, wished children and life within the universe, and created a star for Chauntea. Her sister, Shar, despised the noise and light of creation - so they did battle, in that primeval cosmos. In their desperate struggle, Selune hurled some of herself at Shar as if a spear, and when their mixed essence tore away, Mystryl was born. Mystryl mediated between the two, siding with Selune in the interest of life and driving Shar into the darkness where she lurks, though often balancing between the two in other matters. She created the Weave, the essence of magic, and bound it throughout the multi-verse creating order where there was chaos. She made the Weave accessible to all, that her warring mothers might not claim favoritism, and created magic to be wielded by mortals and divine alike.
There are two facets of magic, that which is arcane, is known as the Art. That which is divine, is known as the Power. Both the Art and the Power come from the weave, though it's access and effects are starkly different. The Power, as you might know, comes from the devoted worship of deities, who gift spells to their servants to do their bidding or spread their message - it is a delegation of a tiny part of their vast, divine authority. The energy to do so comes from the Weave, however, as all gods draw from it themselves. The Art is arcane in nature, and thus is not directly given by a god but must be accessed in different ways - more precisely, through the unlocking of the hidden magical potential of words and objects in the physical world.
You see, the Weave permeates everything that exists, and all that is, is tied to a strand of the Weave. Even words and concepts have magical power tied to them, if one knows how to access it. Thus the mage speaks words of magic, words of truth and singular definition that have been made known to them by instinct or study, and tap into the power of these words. The mage makes gestures and hand motions of significance, whose meaning is ancient and links to a time before language and written word - for gesture is the oldest language of all. The mage utilizes herbs, rocks, crystals, excrements, and all manner of magical components whose innate being is tied to magic. Then the mage weaves each of these strands together in an exhaustive process, and produces spells - it should be noted Sorcerers do not require components, as their natural connection to the weave catalyzes the necessary third element. It can be said then, and often is, that all things are magical and magic is in all things, from the rocks beneath our feet to the air we breathe to the tree's we stand under. This natural, omnipresent magic is the force that druids of the old ways connect to (often with the aid of nature gods) to work their own spells, by their own secret means.
All magic is connected by this Weave, by this singular source, no matter the differences in how we practice it. Mystra teaches us then that we are all brothers and sisters of Magic, that all things great and small are precious for the mysteries they possess. It is a beautiful philosophy, and one few grasp, seeing only the EFFECT of magic and not it's source.