In a large pan, sauté mushrooms and coconut oil over the stovetop on low-medium heat, until mushrooms have just cooked through (about 5-7 minutes), stirring occasionally.
In a large stockpot, while mushrooms are cooking, bring broth to a boil.
Add coconut milk and reduce to a simmer.
Add cooked mushrooms, ginger, lemongrass and chili. Simmer for about 15-20 minutes.
Add arugula; stir and simmer for additional 5-7 minutes or until it has cooked through.
Serve in soup bowls, adding a squeeze of fresh lime (or a drop of lime essential oil), and fresh herbs to your liking.
