Answers:    Two different perspectives on your question-

Physical:
The plant is a purgative. It causes your gallbladder to dump bile, your digestive tract to work overtime, and frequently to expel its contents (from either end). This is within part due to the tannins, but it is also part of the medicinal qualities of the plants. They are specified to detox your body and kill parasites and unhealthy germs in the digestive system.

Spiritual:
When you call on the Mother to heal you and work next to you, it is part of her work to remove the things inside of you that cause you harm. This happen on a physical, mental and emotional level. Sometimes releasing a negative stored reaction or harmful mental pattern is experienced in your body within a physical way as a powerful purge (and you vomit).

When the spirits begin to work on you and cut away illness, you body wants to release it.

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Acai berry & bromalite, the artifice duo?