This article is from the Magick Tantra FAQ, by Tyagi Nagasiva email@example.com, Catherine Yronwode firstname.lastname@example.org with numerous contributions by others.
Tantra yoga places more emphasis on visualization, asanas
(body positions), and breath control than karezza does. In
addition, each tantric school's style is relatively fixed
and even dogmatic, whereas karezza is eclectic.
More remains to be written, but for now, see