Nature is designed to be a place of meditation and refill of energy.
Light energy particles flowing freely in the Nature are collecting around creatures, filling their energy capacity to the maximum.
Nature gives it's energy in a slow manner. Giving space for the player to use the time for admiring the Nature, relaxing and meditation.
Some places are nicer then others, and the more beautiful is the place, the more energy it has and faster is the refil.
Players can define which places in Nature they love by giving their energy to the plants and creatures. It serves double purpose:
In the world of Aery all technology is based on the Natural world. There are NO typical human technologies. Everything (on every level) is plants based. There are only live tree and plants houses. Maximum technology is the ability to shape natural world, without modifying its function. Trees are still live trees, etc.