Keynote address at the international NHE Conference, Caracas, Venezuela, April 2014, by Dr. Shambhushivananda Looking back, about 8000 million years ago (mya), this Earth was only a blazing ball of fire; 4000 mya, it consisted of molten lava and volcanoes; 340 mya life existed only in water; 223 mya land appeared as Gondwanaland; 70 mya…