Traditionally, the opening time of the Gate of Hell is 23: 59 on July 14 in the lunar calendar and early on July 15 in the lunar calendar 12. People believe that July 1 day is the first day when the "gate of hell" opens. From the opening of the ghost gate on July 1 day to the closing of the ghost gate on July 30, there were also many homeless ghosts and wild ghosts. At this time, ghosts in the underworld returned to the sun to reunite with their loved ones. Ghosts from the underworld will flock to the sun and wander where anyone can find food.
July 30th, the first day of the seventh lunar month, was the first day when the "Gate of the Ghost" was opened, starting from the first day of the seventh lunar month. However, the gate of hell will only open on July 14, and a meeting will last until July 15, and then slowly close until the gate of hell closes on July 30.
Taoism believes that July and a half is the birthday of local officials. On this day, they pray for forgiveness, all ghosts will be released from the underworld, and the deceased ancestors can go home for reunion, so it is called "Mid-Autumn Festival".
Every Halloween, traditional customs will prepare sacrifices to appease ghosts, praying that after eating, drinking, collecting clothes and money, they can keep their promises and do their duty and not make trouble on the dead.
But from the Buddhist point of view, it is also the Buddha's compassion that opened the door to hell, and let many unfulfilled ghosts completely get rid of their troubles and regrets, repent, let go, and finally get rid of their suffering.