What are meridians made of?
We think they are made of water clusters. Water clusters are groups of many water molecules aligned with each other. These water clusters then have a positive and a negative end.
The meridians we think are long stings of these water clusters flowing between the cells.
Ions, photons, sound waves can then propagate along these waterstrings.
Different states our meridians can be in
stage 1: Water clusters are out alignment. One may be sick.
stage 2: Water clusters are aligned. One is reasonably healthy.
stage 3: The ions flowing along the aligned water clusters becoming superconducting. This superconductive electricity is what the yogis call kundalini energy.
book "Biophysics basis for acupuncture and health" by Shui Yin Lo