Noah repeated the word "mistake" in his mind as he tried to link that realization to his element and his cultivation.
'A mistake that strives for power. The sole fact that I'm alive is an act of defiance against Heaven and Earth but my defiance is not what drives my life, it's just a consequence of my pursuit for power.'
Noah didn't choose to defy the rules of Heaven and Earth and to train in unorthodox methods because he preferred that path, he had been forced by the many dire situations of his life to walk on that road.
His status as bastard had forced him to train in the Forging of the Seven Hells to obtain a rank 3 body, his family would have never given him an orthodox body-nourishing method due to his father's obstruction.
He had learnt the Elemental forging method because that was the only inscription method that he could train in, he needed to learn it or he would have had to rely on techniques created by others to raise his level.
