The first two areas on the second floor of the pagoda that became useful to him were the waterfall and the desert.
'My body has been refined by my cultivation and the Heavenly Unification Law. In terms of pure strength and fortification, it is undoubtedly already qualified to practice the Grand Arsenal.'
However, it felt wrong. When Atlas first started learning the technique in his past life, he did rigorous training to bring his body into its peak condition before continuing.
Though he was taking a different path, at his core, he was still the same person.
He used those same principles this time.
The waterfall was a good place to experience the pressure of the world. If he stood under the massive roaring torrent and circulated his qi, his head, neck, and shoulders could be toughened until they reached their natural limit.
