According to Osho, religions differ because of their age and psychology: ancient faiths, like Hinduism, are past‑oriented, glorifying a lost 'golden age'; newer religions (and ideologies like communism) lack a past, so they project salvation into an afterlife or utopian future, feeding hope—the oldest psychological drug. Both past and future are evasions; only the present is real and spiritually authentic.
Old religions praise the past, new ones promise a better future, but both distract you from living fully right now.