Alexander's achievement was not the conquest of India, but the feat of actually getting there and his two years in India were more of a geographical expedition than a military campaign. .... a Greek army had reached what they regarded as the end of the earth. They had pitted themselves against the ultimate as bravely as the yogins had struggled to break through the limits of the human psyche. Where mystics had conquered interior space, Alexander explored the farthest reaches of the physical world. .... like many of the axial sages, he was constantly 'straining after more'.