Literature Reference: 夙秘绛囊诀，屡投金简名。——《送郑丞之罗浮中习业》 Long held the secret of the crimson pouch, often cast the golden slip for fame. Source from 'Seeing Off Zheng Cheng to Study at Luofu'.
绛: Deep crimson, carrying no specific symbolism.
囊: Pouch: Medicine Bag
Meaning: The crimson pouch symbolizes hidden wisdom and precious secrets, representing inner cultivation and spiritual richness.