Batak Tendi - or Life-Soul

Batak Totem Pole

In the religious world of the Toba and Karo Batak the gods and the creation of mankind are far less significant than the complex concepts connected with the tendi (Karo) or tondi (Toba) and the begu. Probably the most useful translations of these terms are "life-soul" and "death-soul".
Among the Karo and the Toba there are sometimes widely diverging versions of where the tendi dwells and how many tendi there are. According to the Toba a person has seven tendi. The second tendi is found in the placenta and amniotic fluid of the new-born baby, and accordingly the afterbirth is given special attention after the birth of a child. It is usually buried under the house, is called saudara (brother) and is regarded as the person's guardian spirit. Similar ideas about the afterbirth are also found among the Karo, who also bury the placenta and amniotic fluid under the house and regard them as two guardian spirits (kaka and agi) who always remain close to the person.^[26]
All Batak regard the loss of tendi as signifying a great danger for "body and soul". Tendi can be separated from their owners through inattentiveness, or as a result of black magic by a datu with evil intentions. In other words, the tendi is not tied to the body; it can also live for a time outside the body. The final loss of the tendi inevitably results in death. There are a variety of ideas about where exactly in the body the tendi dwells. It is present to a particularly high degree in certain parts of the body, especially the blood, the liver, the head and the heart. Sweat too is described as rich in tendi. It is believed that illnesses are connected with the absence of tendi, and the bringing back of the tendi is a main method of healing. The Karo, for instance, have gifts, called upah tendi (upah = wage, payment, gift), which they give to their tendi so that their tendi stay with them. These gifts may consist of a knife, a gong, a particular piece of clothing, a water buffalo or a small holy place. The gifts are carefully cared for in order to keep the tendi satisfied.^[27]

http://en.wikipedia.org/wiki/Batak_(Indonesia)