When we talk about zero spacing flux, we are talking about a special kind of space that is really, really tiny. It's so small, we can't even see it with our eyes or even with a microscope! But even though it's tiny, it's still really important.
You might have heard of something called "flux" before. Flux is like a magnet's magical power that attracts other things to it. It's what makes magnets stick to the refrigerator or to each other.
Zero spacing flux is a special kind of flux that happens when two magnets are really close together, so close that there isn't any space between them. When this happens, the flux gets really strong and it can pull things towards the magnets with even more force than before.
Think of it like a hug. When you hug someone, you feel close to them and you can feel their warmth and love. That's like the magnets being close together. But if you give a really tight hug, it's like the zero spacing flux. The hug is even stronger and you feel even more connected to the other person.
So even though we can't see or touch zero spacing flux, it's still really important because it helps magnets stick to things even better.