Resources / Neidan study instrument

Internal Alchemy Map

Explore symbolic models of essence, vitality, spirit, refinement, return, and the internal alchemical landscape.

This instrument is intended for historical, symbolic, and comparative study. Daoist internal-alchemy practices vary by lineage and may involve methods traditionally taught under qualified guidance. The instrument does not provide medical advice or individualized practice instructions.

Alchemy

Essence

Mode

Neidan study map

Three Treasures

精 · Jīng

Essence

A key term often translated as essence, one of the Three Treasures / Triple Treasure. Its meaning varies across medical, cosmological, and internal-alchemical contexts.

Active mode

Three Treasures