This is Sadie (hi Sadie!).
Perhaps you are thinking that Good Shepherd Boarding Kennel really knows how to service those "special needs dogs." While this is true, Sadie does in fact have front legs. She is only resting them under her torso.
When I saw Sadie like this, it made me happy. For her to be this relaxed was a good sign. Dogs don't put themselves in vulnerable positions unless they feel safe.
What about you? Where do you feel the least vulnerable, and really get comfortable? Sometimes it is in the privacy of our own homes. Sometimes it is with our closest friends. Often, our guard is up, unsure if we can really be ourselves. But isn't it a joy to be so comfortable that we can even tuck our legs under us and relax?