Skye Harrison's words greatly inspired Peter Brown, who then made his own decision: to develop both civilizations simultaneously.
Due to the starlight cannon, Earthlings' memories were affected. Peter couldn't influence so many people at once. Thus, to develop the cultivation civilization, Peter really didn't have any available talent at hand. So he turned his attention to his own family.
Those in closed-door cultivation in the Windsor Family's Heavenly Cave should not have been affected by the starlight cannon. Awakening them became a priority.
Peter now knew many things and realized that closed-door cultivation wasn't the best approach. It was better for them to cultivate and develop together.
After sorting everything out, Peter was already outside the Windsor Family's Heavenly Cave.