The preaching’s in the four vedas are related to the four Yugas viz., Satya, Treta, Dvapara and Kaliyuga. We are now living in the last one, Kaliyuga. In Kali Yuga, the knowledge and power of man is confined to the world of gross matter (Bhu Loka, first sphere,) and his state is dependent of Nature. During this Yuga, his mind is centered on the problems of material objectivity, the Avidya of Atomic Form. Vedas may have more relevance to especially Kaliyuga which is left with only 25%.truth (In Satya 100% truth prevailed; in Treta 25% of truth lost, in Dvapara 50%), a world which is infested with impurities and vices. People possessing genial virtues diminishing day by day. Floods and famine, war and crime, deceit and duplicity characterize this age.