Hello Sandra, feeling the whole body all at once, in 3-d includes according to my experience: Your feeling tells you where all your extremities, fingers, toes sit exactly in space, in relation to the other body parts, and in relation to objects outside your body. This includes directions, and velocities. You do not analyze it with your intellect, it is an immediate knowledge, and detached from all emotions. It is what allows you to perform routine tasks without thinking about it, like riding a bicycle; or as a swimmer, floating in water without drowning; or as a tennis player, to hit the ball with the racket at exactly the right time, angle and force to drive it to a specific spot on the court. It is nothing magical or spiritual. Just something that can be trained and applied, and able to increase your performance during any physical activity. The Body Being / Art of Effortless Power are great training grounds for it, because you will find people there who include related practice in the training sessions.