Shinthiwali was the son of a king's daughter, and
he had to remain in his mother's womb for seven
long years because of a sin 7 in a past existence.
Then for one whole week the mother could not
give birth, and on the seventh day she said to
her father, the king, 'Let me offer some gifts to
the Buddha before I die.' The gifts were made and
the Buddha blessed her. Her suffering ceased and
she gave birth to Thiwali, who at once spoke and
behaved like an adult. The Buddha's Chief Disciple,
Shin Sariputtra, arrived on the scene and, receiving
permission from the parents admitted Thiwali to the
Order. He attained Arahatship the same day. Because
of his meritorious deeds in the past he was always
receiving gifts of food and robes, and was declared
by the Buddha to be the foremost recipient of gifts
among his disciples. The Burmese believe that he
is still living, that he can be invoked to come by a
prayer of special formula and that his mere invisible
presence will bring them prosperity and good fortune.
Therefore, a tiny image of him, carrying a staff in
one hand and a fan in the other, as if ready for travel,
is kept for worship in many Burmese households.
Reference: Htin Aung, Dr. The Ari Monks and the Introduction of Buddhism. 1981.