A long time ago I took some classes with a Zen guy who liked to use real-world examples to illustrate concepts. He said trying to keep a secret suppressed is like trying to hold an inflatable mattress under water. As long as you can devote ALL you attention to doing ONLY that, you might be able to keep the whole thing at least a little bit below the surface. But, as soon as you get distracted or start thinking about something else, sure enough a corner is going to pop above the surface.
Case in point ...