"Now, focus on the space where the Mana is flowing into. Try to get your consciousness to flow along into it with the moving Mana. After which you will find yourself in a small galaxy that is probably not more than fifty meters wide.
In Kai's case, your galaxy should be a hundred meters wide.
That galaxy is your soul galaxy and is where your elemental moons stay. Elemental moons are the cores of your magic and they are what help you to cast spells, they are also your Mana reserves. The more spacious your soul galaxy is, the bigger your elemental moons are and the more Mana they can store.
Elemental moons are seven in total but are divided into fourteen halves. You will naturally find them inside your soul galaxy as they are too big to ignore. Now, you have to try and put them under control as they are like spoiled brats who do not listen to orders and like to act freely, they do not want to be in the control of others.