The Lifestream

The Lifestream is an alternate dimension. It can be described as the plane of existence between Kyvan as a being and Nophra.

The main purpose of the Lifestream is to allow for the demigods to interact with Nophra's "back end", so to speak. Through here, they can ensure that life continues to exist sustainably. By manipulating certain strands of existence, they can correct things that would otherwise lead to mass extinctions and various other disasters.

Each demigod is particularly skilled with a certain set of strands and they all have their own things to maintain.

They also curate and spark life through here. No Crystali should be overly imbued with magic, and no Crystali should be brought to life for the wrong reasons. The demigods actually do not decide who gets to have a child, they just identify which sparks are strong and pure enough to warrant it.

They also tend to the ratio of elements, so that the flow that feeds Crystali is not overly influenced by a single one.

The Demigods are also vigilant of 'errors' within the Lifestream. Sometimes weird stuff happens, and it creates things that really shouldn't exist. The demigods are very sensitive to such events and rarely ever let anything truly bad enter reality.

Travel

The Lifestream is completely inaccessible to most, only the Demigods and a very select few creatures know of its existence, let alone how to enter it.

Portals into it are essentially just bodies of water large enough to be dived into. Their size requirement is subjective, meaning larger beings need larger pools. To most, they are just bodies of water, but to someone who can access the Lifestream they are a fast travel ticket to anywhere on the globe with a pool of water suitable to be an exit point.

Surprising bystanders with a spectacular entrance into reality isn't much of an issue since they can be sensed from within.