Separation logic is like a set of special rules for taking care of your toys. Imagine you have a toy box filled with different toys. You want to make sure that each toy has its own space in the toy box and that no toys get mixed up or lost.
Separation logic helps you keep track of your toys by giving you special rules for the toy box. For example, if you want to add a new toy to the toy box, you need to make sure there is space for it and that it doesn't bump into any other toys.
Another rule might be that if you take out a toy from the toy box, you need to make sure that you put it back in the same place when you're done playing with it. This way, you can always find your toys when you need them.
These rules are like the rules in separation logic. They help you keep track of different pieces of information in a computer program so that you don't accidentally mix them up or lose them. Just like with your toys, separation logic helps you make sure that everything stays organized and easy to find.