After reaching the ninth layer of Qi Refinement, one can begin preparing for Foundation Establishment.
Foundation Establishment, as the name suggests, is the foundation of the Dao. Only with a solid foundation can one eventually master the Dao and reach the heavens. Otherwise, it is just a castle in the air.
In ancient times, it is said that Foundation Establishment did not require Foundation Establishment Pills because the great war between righteousness and evil destroyed many Ancestor Veins, causing a change in nature's spiritual energy.
Since then, Foundation Establishment has become extremely difficult, needing the aid of Heavenly Materials and Earthly Treasures or Elixir Pills to succeed.
