"There are dangers, yes... I've told you this before. Some who enter the Secret Realm report the pressure inside is like a mountain, making every step a struggle. Others, however, feel as light as a feather, their thoughts flowing freely. Some witness inverted rivers of stars and forests of bizarre peaks, while others perceive only a formless chaos, their bodies filled with nothing but a frosty aura... These phenomena, all of which transcend mortal understanding, are the greatest danger. Especially since you'll need to absorb the 'Celestial Spirit Sharp Qi' while you're in there. That 'Celestial Spirit Sharp Qi' is exceptionally sharp; the slightest carelessness could damage your Physique and meridians... During this process, your Spirit can easily become lost and confused... So, within the Heavenly Gang Secret Realm... you absolutely must not rashly practice the Spiritual Sense Leaf Skill."
At this point, his Master warned Qin Fang with great seriousness.
