Close,
Okay, magic is a learned art, while some people are born with the talent they will rarely start using magic.
It is also a blessing of sorts from three gods of magic, that is to say the origin of magic was the three dragons (all are gods) decided to gift the races with the ability to manipulate the streams of magic. To manipulate the energy is what a mage learns
It is common practice for mages to use certain items to assist them in there castings, chants, gestures, wands, etc...
Yes magical energy can be stored in containers, thus making it so the mage can call on it instead of channeling the stream directly, which can be tiring. To fill a basic container, the first magic items a mage learns how to build, a mage must channel the magic into it, this is tiring but then can function as a battery (Mechanicaly the End Res Rec costs end to use)
Yes I see a mage as having alot of spells,
Magic itself is understood by natives to some degree (a wizard needs not fear being considered a demon)
I need to work on it somemore...