According to Wang Baole's understanding, Heavenly Evocation meant allowing one's consciousness to depart from one's physical body to loiter between the heavens and earth. There, they could, to a certain extent, become identical to the remnant god consciousnesses. That was the only way to sense their existence.
As for the real meaning of Heavenly Evocation, there was no need to complete the initial process of the fugue state through the help of a Dharmic Armament. Instead, one could shut his eyes and, through their own cultivation and level of familiarity, go in all directions as if in a fugue state.
However, Wang Baole lacked both in terms of cultivation and skill. Therefore, despite him surpassing his peers, he still needed to depend on a Dharmic Armament as a key in order to sense the god consciousnesses.