Even though we may become numb to the outside world, our connection with it never ceases. The level of awareness and sensitivity we have to the universe, inside and out, is always present. This isn't even meant in a theoretically way. We never truly lose that boundless, vibrant state. We can always move beyond our boundaries because, they're not truly boundaries, not really. They exist, sure, and it's our own willingness, our own action of blockage, yes, but to move past them is as direct as moving your arm forward, opening your eyes, or, no, even easier: breathing. It's just there. Feel the air inhale, exhale.
It's difficult to describe it but, our sensitivity to the subtle bodies, including our own, is heightened when we are less inhibited by our own conditioning. "I can't feel this, I can't connect to another's soul, feel their emotions, No way! What am I, a sage?"
Personally I often forget about it, I drift back into a normal, bounded state of affairs. Where we must pick up what others think and feel by clues they give. Where we often hold up our personal fortress and interact with the world through a fence. Sometimes it's so easy to forget that's all artificial, and not realize that being open and boundless is actually a release from such heavy, convoluted mannerisms. It's already, always present. Your fear, your will, your "i" shouting in the night is the only act of refusal. Release, open, and swim a little in the river. For in truth, "simply being" is closer to you than your own breath.