In Palo, it is believed that the spirit of the dead individual resides in the nganga. This becomes a slave of the owner, making the relationship between the palera/palero and their spirit quite different from the reciprocal relationship that the santera/santero has with their oricha. The spirit will then protect the palero or palera, and carries out the commands of their owner or their owner's clients; its services are termed "trabajos". They rule over other spirits, of animals and plants, that are also included in the nganga. Specific animal parts added are believe to enhance the skills of the nganga; a bat's skeleton for instance might be seen as giving the nganga the ability to fly through the night to conduct errands.