Ritualistic effects on (a) perceived health and (b) social bonding are highest on the focal day of the festival, but steadily increasing for (c) positive affect. Note: time is coded as −2 (one week before festival), −1 (2 days before the main festival day), 0 (main day of Diwali), 1 (2 days after the main day), 2 (one week after). (Online version in colour.)