Castor oil is simmered over wood fire in open cauldrons for two days until it polymerizes into viscous rogan gel, then ground on stone slabs with chalk and mineral pigments. 1
Holding a palmful of paste to keep it warm and pliable, the artisan draws hair-thin elastic threads inches above cotton cloth with a six-inch iron kalam rod, folding the cloth in half to transfer a mirror-image Tree of Life. 1
