Oriental astronomy teaches a cyclic or rather spiralic model of human development, the closer we are to our sun’s dual, the higher is our civilisation, the further away we are, the lower is our civilisation. Meaning that there will be a constant rise and fall of civilisations and of the general ethical and intellectual standars of man. In other words, in any given time, the general population will have a level of development corresponding to the Yuga, the age the earth is in at that particular time, meaning that we have a rise and fall of civilisations happening, with a full circle lasting 24.000 years.