With so many manas spread through these odd separated boundaries, Walker felt that it could overwhelm his senses. Yet, he found that they weren't more like the mana was welcoming him now.
Even though they were chaotic in some instances, the manas that were denser and calmer were taming those more chaotic manas. It gave Walker a clear understanding of how the elemental panes may have formed over years and years of this.
The dense manas might be chapotic and unbalanced outside of the elemental planes. Especially outside of the world where the bridges to the elemental planes were not. That was just their form when they lacked a balance and could only clash with one another. Nothing was stopping them from acting in this way.