During the Bloody Trial, Luo Hong had learned from Li Huayuan that quite a few Spiritual Herbs did not produce seeds and could not be cultivated in large quantities through Medicine Fields.
Yet these Spiritual Herbs would not vanish from the Cultivation World either, for as long as they had a specific environment, they could be nurtured by heaven and earth into existence.
The several main ingredients of the Foundation Establishment Pill were typical examples.
Such environments capable of nurturing Spiritual Herbs were collectively known as Spiritual Apertures.
As everyone knew, Heaven and Earth Spiritual Qi was constantly in motion, so the birth of a Spiritual Aperture was highly coincidental, and it could not last for long.
Under normal circumstances, however, a Spiritual Aperture did not need to endure. As long as it lasted long enough to nurture seedlings of Spiritual Herbs, the seedlings could continue growing in a relatively stable Spiritual Qi environment even after the Spiritual Aperture disappeared.
A so-called stable Spiritual Aperture was one that could exist for a long time!
To the Spiritual Herbs born within it, this was equivalent to Human Race Cultivators constantly soaking in the Innate Qi present only at the time of their birth, allowing them to grow several times faster.
In one year, they could accumulate the Medicinal Power of four or five normal years!
Taking this place as an example, this Ten Thousand Year Yin Void Grass might actually have grown for barely two thousand years. Even if Miao Hu harvested it, another Ten Thousand Year Yin Void Grass would be nurtured here the day after tomorrow, until this stable Spiritual Aperture disappeared.
According to ancient records, stable Spiritual Apertures were even rarer than Integration Stage Level spiritual treasures. Luo Hong and the others had truly struck it lucky this