I use the leftover ashes, but from a ritual / meditation meant specifically for the preparation of the ink and in tune with its porpuse. Then I add more resins and gum Arabic to the ashes.
Yep, it’s almost like making incense; you should always follow correspondences, planetary hours and so on. I made ink a few times; it’s not really difficult as it seems; I use resins and charcoal (I don’t use incense sticks); so you smashed all the resins and mixed them together, then you add the as...