While exploring Aeternum, make sure to always place your Camp (default: [Y]). Your camp acts as a respawn point, basic crafting station, and rest area to replenish your Health and Mana.
You can destroy your Camp by holding the same button used to place it. You do not need to be near it to do so. This lets you break camp from anywhere so you can place a new one without going back. Both placing and destroying your Camp are free, so do it often to make sure it's always nearby.