If knowledge is dominance, then after you have completed this part, you will be feel like Mighty Man when this subject is brought up in casual conversation.
It is a saying in BJJ that hip group is the most important thing. "Boca" Oliveira, a de la Riva black belt: "the hips are 90% of jiu-jitsu, and station is the other 10%". Most instructors would harmonize with the strength of his avowal, because the hips tolerate you to escapism bad stations, stun opponents, lapse the guard, and smear armlocks, leglocks and chokes.
Let's respect the closed guard base. To set up the enormous maturity of violent actions in the guard you have to do one, or both, of the next:
1. twist your body so your substance is on one buttock only,
For the rest of this article, we will discuss the meaning behind what we have learned about this subject so far.
2. and/or pivot your hips so that he is no longer clear with you.
Of course there are some exceptions to this judge (like some revere chokes, for example), but it is veritable for the enormous maturity of violent techniques from the guard.
An example of the first wave (twisting the hips) can be found in this grappling photo. It is perhaps appropriate that it is the aforementioned Boca who is with this group to armlock me.
An example the back wave (hip pivoting) can be found in the wavering armbar drill in this piece. No spin, no armbar!
The flipmargin of this rule is that if you close down your opponent's hips you close down most of his plucky. In the guard I call this "time the Hips". If you are in your opponent's closed guard you impound his hips by forever staying clear with your opponent and care his hips tedious on the ground, attentive between your two knees. If he escapisms his hips out earlier your right knee, for example, then you ring to your right awaiting you are clear with him again. If he twists his body against his right margin you ring towards your left and move him tedious.
Once you are clear with your opponent you can make it harder for him to escapism his hips by smearing an private oblige on his hips with the inmargin of your knees. If appropriate, you can also use your elbows to help control his hip group, but the central oblige comes from your knees. Objectively you aren't smearing very greatly oblige with your legs here - your adductors aren't very muscular muscles - but even a little bit of oblige can execute his group to a significant grade. You can use this private oblige both kneeling or standing in your opponent's guard, but it is easier to learn and smear in the kneeling station.
Give these spinning groups and private oblige a try with a guidance partner and see if it makes a difference.
Over time, you will begin to understand how these concepts really come together if you choose to venture into this subject further.