FLOOD OF FIRE, Amitav Ghosh:

battles.md

In other ways too the day was a revelation to Neel. He had never witnessed a battle before and was profoundly affected by what he saw. Thinking about it later he understood that a battle was a distillation of time: years and years of preparation, decades of innovation and change were squeezed into a clash of very short duration. And when it was over the impact radiated backwards and forwards through time, determining the future and even, in a sense, changing the past, or at least the general understanding of it. It astonished him that he had not recognized before the terrible power that was contained within these wrinkles in time -- a power that could mould the lives of those who came afterwards for generation after generation. He remembered how, when reading of long-ago battles like Panipat and Plassey, he had thought of them as immeasurably distant from his own life, a matter of quaint uniforms and old-fashioned weaponry. Only now did it occur to him that it was on battlefields such as those that his own place in the world had been decided. He understood then why Shias commemorate the Battle of Kerbala every year: it was an acknowledgement that just as the earth splits apart at certain moments, to create monumental upheavals that forever change the terrain, so too do time and history.