In vedic cures, the term "rasah" is often used to mean some dravya which is to be energized with mantra and given for consumtion to the patient.
Dadhi ghritam madhoodakamiti rasah.
The rasas are curd, ghee, honey and water.
These are substances which can abosrb and retain the mantras so that when consumed they get trasferred and absorbed into the body.
