Kundalini cures you, she improves you, she bestows all the blissful things upon you. She takes you away from the worries of grosser level.
To promote the healing response, you must get past all the grosser levels of the body - cells, tissues, organs and systems -- and arrive at a junction point between mind and matter, the point where consciousness actually starts to have an effect.
The finer is always the cause, the grosser the effect. So the external world is the effect, the internal the cause.