"She walks most gracefully" may very well be a synonym for "She walks extremely gracefully". But "she walks most gracefully" is also used to mean "she walks by far the most gracefully". So, the version without the "the" carries both of those meanings (or sets of meanings). Eliminate some weight. https://thejillist.com/story11321670/5-essential-elements-for-best-ayurvedic-medicine-for-high-triglycerides