The "Rules" of Touch.
As we grow, touch moves from instinct and natural to have an affect base. Touch starts to carry the "weight" of emotions and manners. Social etiquette steps in. We learn the rules of touch by watching our others.' We watch family members interact with touch. We're also told when it is safe to touch and when not. Judgment is passed on touch. To touch fades from our everyday life when we start to walk and get independent.
As a mobile child, we are soon taught that we have good touches and bad touches. We're not to let any one we don't know touch us. Before most of us learn that, our DNA driven moves us toward anyone with open arms. We're ready for embraces and kisses. Then that behavior is taught out of us. To touch has rules. Touch moves from parents to friends as we grow, thru wrestling and fighting, arm and hand holding, as we make touch part of our play.
As a teenager, touch becomes sexual. Few teenagers receive more than compulsory hugs from their parents. Other touches are limited to hand shakes, until a teenager encounters dating, where touching rules' change again.
As an adult, touch only comes from strangers with hugs and hand shakes, or thru intimate relations. Once we've a family, touch fills our life again thru our children. Then our children start to learn that touch has rules. Til grandchildren enter the stage, most touch will come from one person, our partner, or few people, until we die.

Our Internal Knitting.
Connective tissues ( fascia ) bind our body into a whole. It is the most wide spread tissue in our body. It forms an maze of mesh that links all our body parts. It holds discrete bundles of bones, muscles, organs, etc. How it moves our times to become lively body motion? These will enrich the lush cell value of our varied and vital tissue. It transmits our moves. It gives our muscles lubricants and agents that heal. We enjoy our flex. We love to feel free. So let's focus on connective tissue and muscle fascia.
Muscle fascia do affect our flexibility. Fascia makes up as much as 30% of our total muscle mass. It makes up about 41% of our total muscle resistance to motion. Fascia is the stuff that sorts each of our muscle fibers. Fascia makes a bundle of them into work units. It offers structure and transmits force.
We derive many gains from a fun reach: joint lubrication, better healing, more circulation, and extra mobility. These all relate to salubrious stimulation of our fascia. Of all the basic parts of our body which limit our flexibility, it is the one that we can safely stretch. Most every lively motion does enrich the inner health of each cell of our varied and vital fascia.

We're Alive, Always In Flux.
So who are we, independent of our others' and our world? We haven't anything we can point to within ourselves that we can confidently say is a core essence that will Never' change. We might offer our personality, or values, an introvert, a romantic, or that we have a deep love of beauty. Still, these are descriptors of ways we behave or what motivates us. They aren't who we are.
We can go on with this effort, but we don't find anything we can nail down as "Who we are?" All the things we come up with are superficial and impermanent. We don't have anything we can point to within ourselves that we can confidently say is a core essence that will Never' change.
This idea doesn't say we don't exist. If we walked into a wall, our bodies would bump against it and we'd feel pain. Yes we exist! What it means is that we're constantly changing beings. We're always in flux. We're not permanent. We're not fixed entities.