By simply focusing your attention on your breathing and without doing anything to change it, you can move in the direction of relaxation.â. This same philosophy is used in his well-known âThe 4-7-8 Breathing Exercise,â also called âThe Relaxing Breath,â which promotes better sleep.
A cave is a hollow place in the ground, specifically a natural underground space large enough for a human to enter. Caves form naturally by the weathering of rock and often extend deep underground. The word cave can also refer to much smaller openings such as sea caves, rock shelters, and grottos, though strictly speaking a cave is exogene, meaning it is deeper than its opening is wide, and a rock shelter is endogene. A cavern is a specific type of cave, naturally formed in soluble rock with the
Nearly all caves open to the public are of this type. These caves are called SOLUTION CAVES formed in rocks such as limestone or dolostone. They are part of a unique kind of landscape containing sinkholes, sinking streams, and springs. This landform type is called KARST, named for a plateau in western Slovenia.