If our talent is high and our challenge too low, then we are bored at work. If our talent is not at the right level and the challenge is too high, we are very stressed at work.

Getting into the right balance, which we call FLOW, is the only place from where we can begin to learn rapidly, effectively and obtain better results, a higher ROI.

When I'm on the line of flow, the challenge is at the right level for me and my skills are at the right level for the challenge I feel in control and I don't see the time pass.  This is called flow.  

In this position I can add to my skills and I can increase the challneges with these new skills. I can make progress both sure and rapid.