This study is a contribution to the anthropological research on zodiac astrology, presenting a reflection on the logical consequences of the symbolism as a metaphysical assumption. Such idea requires a specific type of grounding of astrological system and that it performs a base role in astrologists cosmology assumptions on any subject. As a part of a field work on that topic, this article concentrates on justifying its hypothesis through interviews with three astrologists, methodologically built towards a hermeneutic conception of anthropology.