Tap a Mana

Tap a Mana.
The latent potential of mana resides in all living
beings, and is created from metabolism. While a
tree or blade of grass does not 'have' mana in the
sense that a person does, the forest, or the land
and the environment that sustains nature has
mana in the overall scheme of the ecosystem.
Tapping into mana allows some spells to be cast
before spending whole mana for other spells.