```
However, the problem arose, cultivation power was limited; if one expended cultivation power to refine elixirs over a prolonged period, it could lead to a severe loss of cultivation power, eventually causing symptoms like bodily weakness and dizziness; in severe cases, it could even lead directly to death; moreover, in this world where spiritual energy was scarce, resupplying the lost cultivation power would come at a great cost.
Therefore, using only cultivation power to refine elixirs was not feasible.
As a result, alchemists would typically combine their cultivation power with common fire during the refinement, allowing them to use only a small amount of cultivation power, or just the amount that required cultivation power, to complete the elixir; however, this method took more time.
