A Yin Errand Who Works as a Errand in the Yang World

I was born on the 15th day of the seventh lunar month, a special day known as the "Ghost Festival". My grandfather, who is a Feng Shui master, has not allowed me to go out after dark since I was a child. When the elders in the family talk about this, they always look solemn, as if there is a huge secret hidden behind it. I asked my grandfather countless times why, but he just touched my head, his eyes full of worry, but kept silent.