Rowan acknowledges that his presence was a destabilizing factor in any environment, where others struggle all their lives to make a tiny splash in a pond, he had to be careful not to cause a tsunami just by dipping his toes in the ocean.
With the amount of change his actions can create it was almost funny how weak he was, relatively, but that was what came when he was comparing himself with Primordials and creatures that were incredibly ancient.
With no barrier between him and his Ascension except for the matter of ascension towards higher dimensions, Rowan was determined to complete his entire Supreme Circles in his three bloodlines.
There were nine Supreme Circles of ascension, and when an Immortal reached the peak of the Supreme Circles, the only path upwards was the path of Will I.e higher Dimensions.