The developmental signs of advancement in an alchemical soul practice usually involve some sort of healing crisis brought on by a discharge in the soul of accumulated assumptions and belief structures. Most often these assumptions are not perceived by the student in a conscious way. They arise like dream fragments in the daily life and invade the serenity of the soul with impulses that are definitely not in line with progressive development.
The picture is an image of stars falling out of the sky as snow and then falling to earth as crystals. From the point of view of alchemy my thinking is creative when it is focused on the cosmic or starry dimension of my life. That is the source of solutions to my issues. Alchemically, my thinking on earth is a fallen and hardened kind of thinking that fills my inner life with crystallized memories instead of creative images.