Soul-calming grass was one of the rare spirit herbs capable of healing injuries to the primordial spirit. It could stabilize the primordial spirit and soul and mend spiritual wounds, working on injuries below the Golden Core Stage.
Swallowing it directly, however, would bring out only the greater part of its effects.
To unleash its full efficacy, it had to be combined with other spirit herbs and medicinal plants as the primary ingredient in various pills. Liu Yu had read this in his notes on spirit herbs.
Unfortunately, his own accumulated resources were still too meager to compare with those of lineages with long-standing inheritances. He currently had no pill formula that used soul-calming grass as its main ingredient.
Even thinking with his feet, he could tell that such formulas would be exceedingly rare and difficult to obtain. He could only plan for the long term.
In any case, now that he had seeds, he could continually grow more soul-calming grass. Even if he could use only most of its efficacy, he would not begrudge wasting a little medicinal potency.
Liu Yu had long since instructed Jiang Qiushui to keep an eye out for all kinds of spirit herbs and pill formulas. Unfortunately, the harvest over these years had been sparse.
Most of the spirit herbs and pill formulas she collected were for the Qi Refining Period. Even second-tier spirit herbs used in the Foundation Establishment Realm were scarce, let alone second-tier pill formulas.
It was worth mentioning that, to avoid arousing suspicion, he had stopped having Jiang Qiushui purchase spirit herb seeds once the herbs for Azure Origin Pills and Essence-Nourishing Pills had been collected.
Instead, he had switched to collecting mature spirit herbs, asking her to buy fresh ones that could still be planted whenever possible.
Liu Yu had