The soles of the feet can remain on the floor when you slide your feet to the side. But there is also the possibility to turn the legs and slide further to the side with the verse. Oddly enough, I got a little deeper into the position with the verses on the floor. However, it is easier to lose control of the movement.
Getting out of the stance is just as difficult as getting into it. Strong adductors allow the legs to move back toward the center of the body.
Another option is to let yourself fall backwards. This is only recommended if you are already relatively deep in the position.
It is important to hold the position, tense muscles, slide deeper into the position. The body quickly learns to perform the movements. It becomes easier with each time.
I will focus on the splits for four more weeks.