Narendra Modi, India's new prime minister, visited Japan twice during his long decade of ostracism by the West. He is one of only three people that Shinzo Abe follows on Twitter. Commentators have hailed Modi as "India's Abe" because he seems as determined as the Japanese prime minister to boost national self-esteem through economic growth.

Japanese direct investment in India is rising; it may even help realize Modi's grand, Japan-inspired vision of "smart cities" and bullet trains across India. But Modi has deeper reasons for bringing to his first major bilateral visit the intense ardor of a pilgrim approaching an ancient shrine.

Since the 19th century, Hindu nationalists have venerated Japan as the paradigmatic Asian society that preserves its traditional virtues while also developing industrial and military strength and inculcating patriotism among its citizens. Swami Vivekananda, an iconic Hindu thinker of the 19th century claimed after a visit that "if all our rich and educated men once go and see Japan, their eyes will be opened."