In scientific and astrological works, the numerals, as, in Sanskrit, are expressed by symbolical words.
From this early astrological use the form of "glory" or "nimbus" has been adapted or inherited under new beliefs.
The great astrological work uses a term of still wider signification, Subartu, eventually Suri (written Su.
Owing to Semitic influence every Persian god had in Roman times come to possess a twofold significance - astrological and natural, Semitic and Iranian - the earlier and deeper Iranian significance being imparted by the clergy to the few intelligent elect, the more attractive and :superficial Chaldaean symbolism being presented to the multitude.
3 It is plain, however, that there is a long step between the astrological assignation of each hour of the week to a planet and the recognition of the week as an ordinary division of time by people at large.