Kogi mama, priest Juan Vacuna wearing distinctive woven fique, cactus fibre hat at religious centre of Surlivaka Holds lime encrusted poporo, gourd full of fine lime powder from burnt seashells collected along Caribbean coast. The palito, stick represents male penis the gourd female vagina Continuous rubbing - signifying copulation - over years produces large lime encrustation. Lime powder on end of stick stuck into wad of coca leaves in the cheek acts as catalyst to release the cocaine alkaloid from the coca leaves. Process has intense religious and sexual significance for mamas and all traditional Kogi men