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
1 Pore Deposits: 2  Helictites are formed by water slowly entering the caves through pores and cracks in the limestone. Helictites are named from the Greek word 'helix', meaning 'a twist'. 3  Subaerial cave corals are another form of pore deposit that develops as the solution seeps from cave walls, depositing layers of calcite crystal.