Rome, tobacco, is the spirit-plant that defines the Marubo shaman, who is called romeya, 'the one of tobacco'. Taken as snuff by initiated men, it is the substance that opens and sustains commerce with the yové and empowers the singing of the curing and spirit chants. Paired with the vision-vine Oni, tobacco supplies the other half of the shaman's means, and the two together frame the sensory economy through which the romeya moves among the worlds.