A wise man once said "The foundations of a world must be built on something." In Alterra, that saying is what allows the realms to exist. These include Aecho and Mana, relegated to the biotic and abiotic aspects of the realms.
"Aechonite gives us access to magic. It allows our entire way of life to exist. Yet we know so little about it."
A place were even the Elder Races fear dying