Theseus indeed marks, as already noted, the period of transition between the group and the individual, the functionary, the basileus and the individual historic or saga-chief.
Harrison argues that Theseus uniquely embodies the cultural-religious passage from collective tribal daimon to individual democratic hero, rendering him the emblematic figure of Greek individualism’s emergence.
, Themis: A Study of the Social Origins of Greek Religion, 1912thesis