He Shenglai's purpose for this trip was achieved by bestowing the method for cultivating spirit herbs.

From his conversation with Yang Lingqing, he could tell she was a smart person who didn't need further instructions to understand the deeper meaning of his visit.

After He Shenglai left, the Yang family began studying the method for nurturing spirit herbs.

The "Spirit Cultivation and Rain Seeking Technique" is essentially a spell technique that can improve the spiritual energy of the environment.