Centered or Focused?

I lose steam when I lack focus. The lack of clarity is a hindrance. I've been complaining lately of the difficulty of maintaining focus.
I am beginning to suspect, though, that of greater significance is that I am not centered.
Feeling centered is different that feeling focused. I can be centered whether or not I am focused: enjoy a low center of gravity, internal poise, know who I am and whom I serve. Being centered speaks to a soundness and strength within myself. Being focused sees with clarity and steadiness what needs to happen outside of myself.
I think what I'm realizing is that becoming a more centered person comes before becoming a more focused person. While both are essential, one builds on the other. Centeredness extends the reach of my focus.