According to Osho, a yajna’s capacity to influence rain remains unproven; only reproducible demonstration under controlled scientific conditions would validate it. Scriptures, beliefs, or hurt feelings are not evidence. He is open to the possibility, but insists on laboratory testing that convinces the scientific community—extraordinary claims require empirical proof before being accepted.
If you claim a ritual makes it rain, you must show it works in proper scientific tests; belief isn’t proof.