Soak yellow split peas overnight if you can to soften or at least for a couple of hours.
Chop onion and saute in pot until cooked. Add a couple of cups of water and pour lentils until water is covered over lentils. Cook on high.
Meanwhile, microwave yams and boil the carrots until they are cooked.
Once cooked, puree veggies (including ginger) in a blender with vegetable stock to help with the blending process.
When you are finished, pour the liquid into the soup. Add curry, turmeric, coconut milk, salt and pepper. Season to the best of your liking! If you don't like a lot of curry put less or more. If you want it creamier add more coconut milk.
Let the soup cook for about an hour until the lentils are fully cooked and serve!