The Avatar of the World Tree watched as its heart started to be turned into the core of the Barrier of Isolation. One would say that this is easy because it would just be writing magic circles on a powerful magic source but that is only glossing over the fact that it takes lots of concentration and mana. The magic circle that is easy to draw would be easy to decode which is why Adrian is creating a magic circle that would make it difficult for him to decode even though he is the one that created it.
A realm of pure concentration as if time itself have stopped and the only thing that Adrian can see is the beating Heart of the World Tree and himself as he weaved the magic circles. The creation of the magic circles is something like art itself as one could see how he naturally moved the mana reverberating around the heart itself.
