Think about it. Inception is a dream within a dream. Plotting an idea and making someone believe that that was their own to begin with. I try to do the same with some of my stories.
Suddenly before you is a character you seem to know all to well. Just their attitude and appearance sound hauntingly familiar. Who knows? Maybe you do know them. Maybe that's exactly the point. Read the story more and, yeah, okay, this character definitely rings a bell. Before you know it you realize that this character was that girl you met on the bus four years ago when you got caught in the rain. Or that jerk who tortured you in 7th grade because you were the first kid to get acne. Or even your brother who's hug you're now missing.
Did I know that girl you met? The jerk picking on you? Had your brother and I been introduced? No. But I take from the girl I met in haze. The jerk who made fun of me for what I couldn't control. And I can definitely make you like that was your who just opened his arms for a hug.
I take the things in my life, especially the small things, and expand them until they're clear. Then I go in and generalize them, without letting whatever or whoever lose the spark that made them important to begin with. So now not only do we have the main plot line I wrote going on, but at the same time you will be focused on that event or character, wondering what will happen, now feeling a secret second connection.
You wouldn't believe how easy it can become to do. You've got to enjoy the little things, or else your story won't be worth reading. No one wants to read a robot.
Off to write in my book! Who knows? You might be in the next chapter ;) Read carefully my friends.