The Kūṭamudgara — literally the 'wooden hammer' that strikes at delusion — is a verse treatise on the six tastes (ṣaḍrasa) and their ceaseless negotiation with the three doṣas. Two copies survive in the National Institute of Ayurveda's collection, and both open with the same compact doctrine.
Sweet, sour, and salty tastes increase kapha while pacifying vāta; pungent, bitter, and astringent tastes do the reverse. For pitta, sweet, bitter, and astringent bring pacification. The text then arranges the six tastes into triads — the sweet-sour-salty group, the middle sour-salty-pungent group, and the pungent-bitter-astringent group — each with its own pattern of aggravation and relief.
Taste in Time
The most distinctive passages analyze taste across time. Sweet pacifies vāta first and pitta in the middle but aggravates kapha; sour pacifies vāta first but aggravates pitta and kapha in the middle and last; pungent aggravates vāta first and pitta in the middle. The text is careful to note exceptions — substances like jīvantī, barley, and garlic behave differently from what their taste would predict.
There, sweet taste pacifies vata first, pitta in the middle, and aggravates kapha.
The Body as Clock
The same tripartite logic maps onto the body and the day. Kapha occupies the upper body from head to navel, pitta the middle, and vāyu the lower; kapha rules the morning, pitta midday, vāyu the afternoon; kapha dominates childhood, pitta youth, and vāyu old age. The junctions — the chest between upper and middle body, the pakvāśaya between middle and lower, dawn between night and day — are where the doṣas gather, and where disease tends to arise.
The text pairs its medical content with invocations to Śrī Rāma and closes with a philosophical reflection on how hearing alone, like the hollow sound of a wooden mace, can delude the intellect. In the Kūṭamudgara, therapeutics and epistemology are two faces of the same discipline: both teach the reader to distinguish what pacifies from what provokes.