Let's suppose we have two kids. One of these kids loves chocolate chip cookies, and the other one hates chocolate chip cookies. In fact, the second one is allergic to chocolate chip cookies. Now, let's suppose we asked these two kids to walk down a road, and in the middle of the road, we have a table. On that table, we have chocolate chip cookies. Now, as the two kids walk along the pathway, the kid that loves those chocolate chip cookies will stop at the table to actually eat those cookies, while the kid that doesn't like them will keep on walking.