As stated by Abraham Hicks, holding your focus onto something for 17 seconds activates a matching vibration. At this point, the vibration will not have much attraction power, but beyond the 17 seconds mark, the law of attraction will bring in more thoughts that are matching. The longer you'll focus, the stronger it's power will become. And if you manage to hold a pure thought for as little as 68 seconds, the vibration is powerful enough to begin its manifestation.
Thoughts under 17 seconds have no punch to them so they are not a problem. But once it hits that 17 second mark, then the law of attraction kicks in exponentially, although that time is becoming shorter as the energy of our planet is moving faster. I’ve heard Abraham say on a recent video clip that now it’s more like 14 seconds.