Donald Trump fits the idea of what Vishnuā€™s last avatar epitomises ā€“ an invasive, violent, disruptive force that redefines old ideas. I have always maintained that the horse-riding Kalki, the final avatar of Vishnu, is not a saviour who brings back old ideas, but rather an invader, whose violent disruption forces old ideas to redefine, reframe and rejuvenate themselves. For the idea of Kalki emerged with the arrival of Greek, Huns, M...