Here is a classic ACT metaphor. Imagine getting trapped in quicksand and you start to sink. As you start to panic, you try to pull one leg out. But as your weights shift to the other leg, you sink further! Now you’re really panicking, and you desperately pull the other leg up, inadvertently, pushing yourself further into the sand. This is much like how we deal with many of the things that bother us, such as anxiety, in that the more we actively try to fight it or escape it, the more it pulls us under.