According to some sources, this planet is primarily water – at least on the surface it would appear that way – and it is a known fact that our bodies contain a very high percentage of water. In Bhagavad-gita As It Is (3.14) Lord Krsna says, “All living bodies subsist on food grains, which are produced from rains [parjanyat]. Rains are produced by performance of yajna [sacrifice], and yajna is born of prescribed duties.” As much as we’re addicted and depend on “weather forecasts,” only the Lord brings and withholds rainfall.