Firstly, it is believed that standing asana in hatha yoga activates svadisthana, the sacral chakras. Pleasure, sexuality, joy, and creativity are associated with this svadisthana chakra. While Supine splits pose also stimulated the Muladhara chakras which means it offers a sense of safety and security.
Secondly, this pose gives you a more flexible body. It helps stretching your muscles which makes them flexible.
This chakra helps in strengthening the muscles and legs. Your body becomes strong and much more active.
The yoga pose makes your lower abdominal muscles and inner thigh muscles strong and improves digestion.
You can get rid of your menstrual problems and have an easy daily menstrual cycle.
Moreover, when you do this asana you lean forward and put a good stretch on a foot calf, and hamstring. You feel extra strength in your feet. While performing this asana daily and regularly, you would get relief from headaches and insomnia.