Anthony discovered that after each beating session where he got pummeled to a mess, he actually got stronger. His physique got tougher, his mind became sharper, his foundation even became more solid. After each period of injury and healing, his strength increased by leaps and bounds. He had been confused at first, wondering why he got stronger after each battle, and his skills became better. His fighting abilities and battle techniques all improved after each sparring session. It was then that it clicked—body forging.
The old man's beating was forging him like gold passing through fire, squeezing out his inner potentials, and letting him wield his powers better, unleashing each attack with more precision and expertise. The incessant manual labour also helped him grow. Without his soul power, he was forced to personally carry out every task, exerting his physical strength continuously.