In this shot the focal point is on the center of the flower. Notice how the outer seeds are virtually transparent and the flower now has almost a halo appearance.
To accentuate or embolden your focal point you would want to blur much of the rest of the photo. This means you would create a small depth of field. If you read my ABC's of Photography page or are a little educated on photo technique you might recall that depth of field is the part of the photo that is in focus. When composing a photo it is very important to consider what part of the photo you want in focus and how much of it.
So how do you create a shallow depth of field? (ie: have a little area of the photo in focus)
You simply lower your aperture. The smaller the setting the smaller the depth of field will be. That is what I did to take the above photos! My aperture setting was as low as it would go at 2.5. That created the very narrow focal area in my photo. And how I changed what area was in focus? Simply by adjusting my lens focus.
Now get out there and experiment with focusing and depth of field!