Consuming these Spiritual Herbs would certainly come with a great deal of benefit. If Ryu was correct, even he would benefit from it, and that was despite having the Ice Phoenix Bloodline running through his veins.
This herb could deepen his connection with the Ice Element, and also help to increase the Grade of his Inheritance, but this was only a small part.
There was also a small chance of forming a unique Ice Elemental Natural Enlightenment, or forming a unique Ice Elemental Manifestation.
The number of branching and winding paths was nigh endless. It was like a cheat code and was invaluable.
With all of these benefits to be had, who would be worried about finding more? Even Ryu was tempted by this.