Given that water is symbolic of potential, swift movement, and the ability to nurture, it only stands to reason that ice be given symbolic jurisdiction as well.
Water flows, promotes growth, responds to our needs, and is one of the four elements required for survival.
With magick, water is used to attract love, encourage healing, and advance transition.
Ice, on the other hand represents the stultification of development and impedes progress.
Magickally ice is used to slow things down, impede, or otherwise stop forward motion.