source: Wikipedia on Satya Sai Baba

The materializations of vibhuti (holy ash) and other small objects such as rings, necklaces and watches by Sathya Sai Baba were a source of both fame and controversy; devotees considered them signs of divinity, while skeptics viewed them as simple conjuring tricks.[13] By the latter half of the twentieth century, Sai Baba was enjoying tremendous popularity around the world, with widespread faith, fame, criticism and controversies transforming him into a cultural icon. His photographs are displayed in millions of homes and on the dashboards of cars, and lockets bearing his photo are worn by many as a symbol of good luck
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