Health or disease is all interlinked at all levels of reality. Mental, emotional, physical, spiritual. Leveraging a change in health can be done at any of these levels, however bringing understanding into the healing process must be part of it for lasting change.
Also in my experience there is no universality to what organs or structures such as adrenals symbologically mean in one person vs another. Each person's story is unique. There is a connection to the collective conscious with universal symbols but the influence at this level is dependent on many factors. The dis ease (fragmentation ) occurs due to the uniqueness and incoherency within their pattern.
All disease is due to an imbalance of information within the human circuit. Information can be thought of on nutrition terms. It can be thought of in toxic terms. It can be thought of in emotional terms, etc. If the information is imbalanced and creates a misalignment, dis ease occurs. To heal one must bring these information energies back into alignment.