According to Osho, Western interest in Indian religion arises from newfound affluence: once basic needs are satisfied, people shift from seeking goods to seeking meaning. True religion is a 'last luxury' of rich societies. India produced profound spiritual paths when it was affluent (Buddha's era), and those mature traditions now appeal to prosperous Westerners exploring ultimate questions.
When people have enough to live comfortably, they start asking why they’re here, so rich Westerners look to India’s old wisdom born in earlier rich times.