You lose the dagger because of how I hold you. And when I have removed the dagger I can bind you. And in the lower lock I will give you trouble. That is a key to grappling that I will bind you in. And those who are in this lock cannot escape, but must endure great pain and suffering.
The last four scholars of the 3rd master of dagger perform very similar techniques, which are all essentially variations on the theme of the lower bind.
Against a fendente attack, use your right hand to make a hooking block. Catch your opponents wrist using the base of your right thumb and then roll your hand over to grab the wrist. As you do so, step with your left foot so that it is slightly behind your opponents front foot.
Catching the momentum of your opponents attack, pivot on your left foot, and move your right foot in a clockwise arc, giving you a 180 degree turn. Get in close to your opponent, using your hips to push theirs out of the way and steal their centre. The footwork has a very light skipping feeling to it.
As you spin past your opponent, use your left hand to also grab your opponents wrist and lock it against your core. At the very end of the motion, when your opponent is most off balance, release your right hand and use it to strip the weapon. You should find yourself as shown.
You can now strike with the dagger into your opponents head or back. Alternatively, you can drop the dagger and put your opponent into a lower bind as demonstrated by the 5th scholar