Short answers, pulled from the story.
Sri Lankan scholar Indumathie Karunaratna defines devotion in Buddhism as the fact or quality of being devoted to religious observances. This concept appears across Pali language texts through terms like saddhā, gārava, and pūjā.
Early Buddhists practiced buddhānussati by recollecting the qualities of the Buddha. Mahāyāna Buddhism emerged with growing communities feeling loss after the Buddha's passing and developed specific techniques to connect with celestial Buddhas like Amitābha.
Buddhist prostration involves holding hands before the chest and bringing them to different body parts while bowing with elbows and head onto the ground. Practitioners offer flowers to symbolize growth, incense to remind devotees of sanctity, and candles to represent dispelling darkness of ignorance.
Buddha recommended four pilgrimage places: Lumbini birthplace, Bodh Gaya enlightenment site, Sarnath first teaching location, and Kusinara final Nirvana place. Bodh Gaya remains most important among these ancient Indian sites.
Self-immolation practice became common in China between fourth and tenth century CE. Public events attended by emperors and officials organized full burning acts based on Lotus Sūtra chapter twenty-three describing bodhisattva Bhaiśajyarāja setting body on fire.