(M153) The general explanation of the reluctance to shed blood on the ground is probably to be found in the belief that the soul is in the blood, and that therefore any ground on which it may fall necessarily becomes taboo or sacred. In New Zealand anything upon which even a drop of a high chief’s blood chances to fall becomes taboo or sacred to him. For instance, a party of natives having come to visit a chief in a fine new canoe, the chief got into it, but in doing so a splinter entered his foot, and the blood trickled on the canoe, which at once became sacred to him. The owner jumped out, dragged the canoe ashore opposite the chief’s house, and left it there. Again, a chief in entering a missionary’s house knocked his head against a beam, and the blood flowed. The natives said that in former times the house would have belonged to the chief.(829) As usually happens with taboos of universal application, the prohibition to spill the blood of a tribesman on the ground applies with peculiar stringency to chiefs and kings, and is observed in their case long after it has ceased to be observed in the case of others. (M154) We have seen that the Flamen Dialis was not allowed to walk under a trellised vine.(830) The reason for this prohibition was perhaps as follows. It has been shewn that plants are considered as animate beings which bleed when cut, the red juice which exudes from some of them being regarded as the blood of the plant.(831) The juice of the grape is therefore naturally conceived as the blood of the vine.(832) And since, as we have just seen, the soul is often believed to be in the blood, the juice of the grape is regarded as the soul, or as containing the soul, of the vine. This belief is strengthened by the intoxicating effects of wine. For, according to primitive notions, all abnormal mental states, such as intoxication or madness, are caused by the entrance of a spirit into the person; such mental states, in other words, are accounted forms of possession or inspiration. Wine, therefore, is considered on two distinct grounds as a spirit, or containing a spirit; first because, as a red juice, it is identified with the blood of the plant, and second because it intoxicates or inspires. Therefore if the Flamen Dialis had walked under a trellised vine, the spirit of the vine, embodied in the clusters of grapes, would have been immediately over his head and might have touched it, which for a person like him in a state of permanent taboo(833) would have been highly dangerous. This interpretation of the prohibition will be made probable if we can shew, first, that wine has been actually viewed by some peoples as blood, and intoxication as inspiration produced by drinking the blood; and, second, that it is often considered dangerous, especially for tabooed persons, to have either blood or a living person over their heads.