Surface sealing is like putting a band-aid or a sticker on a cut or a scratch to protect it. Just like how band-aids stop the blood from coming out and keep the cut clean, surface sealing is a way to protect surfaces from getting damaged or dirty.
Let's say you have a table in your room. You put your books, snacks, and toys on it, and sometimes you might spill something. Surface sealing is like putting a special coat (like a clear bubble wrap or a plastic wrap) on the table to prevent spills from soaking into the wood and causing permanent stains. It can also protect the table from scratches or other kinds of damage.
Surface sealing isn't just for tables, though. People use it all the time for different surfaces, from walls in the bathroom to floors in the kitchen. It's like adding an extra layer of protection to keep things clean and new-looking for longer.