From the cultivation manual passed down through the Tian Che clan.

Chapter of the Mortal:

With the breath before life, it takes

Eighteen-thousand cycles of learning

Love this novel? Read it on Royal Road to ensure the author gets credit.

Followed by eighteen-thousand cycles to mature

Notes from Tian Che Kijin, patriarch of the Tian Che clan, to his descendants:

To my children and grandchildren,

Prepare yourself as if building a mountain a single pebble at a time, never forget the importance of training daily and challenging yourself. Do not fear the challenge as it will help you grow, but do not to be so foolish as to covet things beyond your ability.