Most Hakka farmhouses are built on the mountain, and so is Tai Po. There is almost a dense forest behind the house. Even if you build a house in a flat place, you should plant all kinds of evergreen bamboo and wood on the artificial soil slope behind the house (locally called the flower terrace), ranging from a few acres to dozens and hundreds of acres, depending on the size of the house. Most of these forests were handed down by ancestors. They regard the Fengshui forest as the source of hope, and its growth is a symbol of the rise and fall of the whole village. Therefore, Hakka people have a special liking for Feng Shui Forest and cherish it. They passed down from generation to generation, established village rules and regulations, and maintained the prosperity of Fengshui forest.
What you said is just a statement of Hakka geomantic forest. Since ancient times, there has been a saying that bamboo is not planted in front of the house and bananas are not planted behind the house. The main reason why bamboo is not planted in front of the house is that the growth cycle of bamboo is short and it grows very high, which affects the lighting.