This results in constant lower back stress, pushing out the organs, and a freezing up of breathing. Bad for everything. 

How to free it? Start moving again. There's a Whole Body Breathing exercise called the Psoas Situp which will make Psoas access click. See it in the database.

expansion. See database for more.

So this becomes a feedback loop: Increased CSF pressure (that deep impulse described in CST) causes the body to expand, which pulls in air, which increases pressure in the body and fascia against the CSF, and this feedback loop continues until the body reaches its upper limit of

Now, if you keep doing this, you'll build up sensation. Then, on every inhale, you can notice that the body is doing this motion naturally. This is your natural craniosacral rhythm, pulling you into proper development.

CSF pressure increases -> the dura/spine fascia surrounding it expands -> the diaphragms and lines expand. Merry Christmas

would be the two lines on either side of the pelvic and respiratory diaphragm)

So the densest part of the fascia network is the dura and the deep fascia surrounding the spine, connecting directly in with the 7 fascial diaphragms / aponeurosis, as well as the 2 lines of fascia (think thoracolumbar fascia as hard outer, linea alba as soft inner, and both

Like pushing the middle of a spiders web will move the whole web.

Check out the original lesson in the database on WholeBodyBreathing.com

For some people if we put them in yoga nidra and tell them not to move, they'll blow that itch into unbearable pain into their own sensation simply because they've been told not to move/touch it. That would be an example of vikalpa

Sort of how like when you calibrate a touchscreen, it showns you a bunch of points on the screen and then when you touch them the system actually knows where things are on the "map" .

That's a really good one because I think research shows that a lot of itching is actually just the body building a mental map - there's no actual problem where we itch, it's just lighting up an area for us to touch to confirm its own idea of itself / its location in space.

Mostly ignore one-time sensations and let them go and karmas/samskaras passing, consistent sensation is usually biology
4. Deepen your awareness, which will deepen your discernment

Further asked, "what about an itchy nose, is that vikalpa/imagination?"

The way to tell if it's imagined or real is to
1. Know the anatomy, especially in relation to WBB - does it make anatomical sense?
2. Some of it may be energetic sensation, yes. Good to feel, definitely a part of the process and affecting the biology
3.

But there are sensations that are actually representative of what the body is doing right now, as compared to sensations that are being induced/coming up which are not actually representative of what is happening in the body / are misrepresentations.