He Song could easily develop several enormous top-tier medicine gardens for himself, with an abundance of rich spiritual Qi.
And within these gardens, because they are shrouded by the Nine Abysses Ruins Array, the concentration of spirit Qi inside is certain to foster the robust growth of spirit medicine.
It's said that a year's growth there can yield the medicinal effects equivalent to ten years in the outside world.
Even those precious spirit medicines could acquire several years' worth of medicinal effects after just a year of growth within.
This way, the demand for age is significantly reduced for the precious spirit medicines cultivated by He Song.
Spirit medicines that originally required hundreds of years of growth to have sufficient medicinal power for elixir refinement.
In He Song's medicine gardens, they might only need about a hundred years to fully meet the needs for elixir refinement.
This naturally saves He Song a considerable amount of time in the process.
