What is the spring that is referred to in the name, “Bubbling Spring”?
Here is how I think of it:
Kidney is the Yin Organ of the Water Element. Springs are where fresh water emerges from the ground. Water nourishes all life. When we bring conscious attention to Kidney 1 while standing on the ground, it is possible to receive energy directly from the Earth.
The Kidney meridian becomes a passage way for Earth’s energy to rise from our feet all the way up to our chest. Along the way this Qi nourishes our legs, reproductive organs, digestive and urinary organs, lungs and heart. All of vital organs are infused by the nourishing energy of the Earth, transformed into flowing Qi of Water.
http://bigtreehealing.com/kidney-1-bubbling-spring/