Add the oil to a large dutch oven set to medium heat. Add the onion, celery, and carrots to the pot and saute for 5-6 minutes or until tender and fragrant.
Add the garlic, ginger, and turmeric to the pan and saute for about a minute. Pour in the chicken broth, and add the thyme, parsley, and chicken breast.
Bring to a boil for a few minutes, then reduce to a simmer, ensuring the broth covers the chicken. Cover with a tilted lid for about 20 minutes or until the chicken is fully cooked through to 165 F. Set the chicken aside on a plate.
Add the stelline to the pot and stir well. Allow to cool for about 8-10 minutes, stirring often, until tender and cooked through.
Shred the chicken well and return it to the pot. Add one lemon juice and stir the soup well. Add extra salt and pepper to taste.
Serve the soup topped with chopped parsley.