Chinese 7th month prayer

Every year during the 7th month of the Chinese calendar, it is what the Chinese believe, is the 'ghost month'. Meaning, ghost from hell will get a month of free pass to roam the human world. It is during this month, Chinese will hold many prayers event. In the company which I work in, every year we will come together as usual during these prepare. And after praying, we will feast on the offerings together! Roast duck, chicken, pig etc.