[Whoops. But well...Caren is also practical. She spreads her hands.]

The whole of the natural world has energy, mana, but some things conduct it better than others. Plants are especially good at this, which may not be a surprise why so many weapons are plant based. Metal as well.

[She makes a dismissive motion.]

Mana exchange is a measure of which we can regenerate mana lost; we take a little from each other and from the atmosphere. More accurately, we purify it, but it's easier to just think of it as regeneration.

It's something you may have noticed, depending on what you've seen. But there is need for physical contact. Hand touching is the most common.

But the more contact and the more intimate it is, the more that will generate more quickly and far more pure.