Okay, so let's imagine you live in a big city with lots of buildings and not a lot of grass or trees. Back to the land is when people decide they don't want to live like that anymore and they want to go back to living closer to nature.
They might move out to the countryside, where there are more farms and forests and fewer buildings. Once they get there, they might start growing their own vegetables and fruits instead of buying them from a store. They might also raise animals like chickens, cows, or pigs.
Instead of buying things from a store, they try to make as much as they can themselves. This might mean making clothes, furniture, or even building their own house! They also try to use things again and again instead of throwing them away.
Living back to the land means being more connected to nature and living a simpler life. For some people, it's a way to be more independent and self-sufficient. For others, it's a way to live a more environmentally-friendly lifestyle.