Illusion, yes. Lying, no.Those pseudo-esoterists who affirm that the Kundalini after having ascended to the Crown Chakra or Lotus of a Thousand Petals descends once again into the Church of Ephesus or coccygeal center, remaining stored there, are lying terribly.
http://www.vopus.org/en/gnosis/alchemy/the-ascent-and-descent-of-the-kundalini.html