Ahh Kali.. she strikes fear into the hearts of many, but I kind of like her. I could do without the blood sacrifice and the dancing on dead men bits..And the necklace of skulls must get smelly sometimes, but there are some positive aspects of Kali that I can use now and then.
In her aspect as destroyer, she's wonderful for transforming negative or useless things into the basic matter of life, thus queen of compost (in the most wonderful sense, of course). Emotionally she can do the same thing for old anger, fear, sorrow. Emotional associations past their time, things that are dragging down the present and impeding healing can be broken down and cleansed away. Cycle of death and life, destruction and rebirth... I see her as the ultimate gardener.
And she makes a damn fine fingerpuppet too.