Before moving to the article, meditate on the following quote inspired by Parmenides.
Temporary is not real. –Hegel (1770-1831)
This article is not closely Hekate related but understanding Parmenides will help you understand Platonism. Read this article, buy the platonic dialogue Parmenides, read at least twice, slowly, following all the logical puzzles and come back to the article. You may also proceed with the surviving excerpts from Parmenide's poem and further studies on the nature of the On.