Using arch muscles while walking

Thank you for this. I can feel the foot motion happening at times throughout my walk. Also when beginning my stride I have trouble relaxing the leg thats moving forward (step3 pg.180)  this shortens my stride length and when I do the recommended squat before walking it sometimes helps, but my pelvis seems to keep tucking on its own making a normal, fluid walking motion feel almost impossible. Do you have any ideas on how I can release this strong pelvic tuck? or will it just take time?

Hello Esther, it's me again. I am sorry for asking you a million questions on the same subject. It's just that this is the only chapter of your book that I feel like I cant master. I have used the tips provided in your above link to some success. My gait feels a little looser while moving. Thank's. Here are my hopefully last question to you on this subject. On pg. 179 step 2 (second bullet and accompying illustration to the right)  What do you mean pulled back within flesh of thigh? what will you feel at this point ? what  is the illustration showing?                                                                                                            Thank you for your generosity and for all of your responses.

LoL. Thank you for the answer,it helps.Quick question: where exactly is the gluteus medius? I tried the exercise on pg. 213 of the book but I cant tell the difference between isolating the different buttock muscles. 

"The glutes attach to the back of the femur, so when you contract the glutes, they literally pull the femur backwards at their attachments" I notice the leg straightens, (gets pulled backwards) Is this correct?