Okay kiddo, so let's start with a spinor. Imagine you have a little toy arrow that can only point up or down. Now imagine you have a lot of these arrows, and you want to describe them all together. That's what a spinor does - it describes a bunch of these little arrows all at once.
An eigenspinor is a special kind of spinor that has a very important property. It's like having a magic wand that can tell you what will happen when you measure the arrow's direction - whether it will point up or down. We call this property "eigenvalue", and it's kind of like a superpower that the eigenspinor has.
Imagine you're playing a game of "spin the arrow" and you want to know what will happen next. If you use an eigenspinor to describe the arrow, you can wave your magic wand and it will tell you what the arrow will do next. Pretty cool, right?
Now, eigenspinors aren't just for toy arrows. We use them in physics to describe things like electrons and other subatomic particles. These particles have a property called "spin", which is a lot like the toy arrows we talked about earlier. And just like with the toy arrows, we can use eigenspinors to describe how these particles behave and what they will do next.
So there you have it - an eigenspinor is a special kind of spinor that has a magical property called eigenvalue, and it helps us describe how particles behave in physics.