It is wonderful indeed, and it builds not only trust, but also liking to each other and the ability to have fun, with no obligations to fulfil this or that training goal. I am also learning to feel this way when we are actually training, because it helps Snickers to loosen up and have good times even when we are doing hard work. If I perceive it as hard work myself, Snickers then immediately finds it...boring. :)
I have come a long way, to surrender my shadow to the shadow of my horse.