Focus

Websters 1828 Dictionary:

1. In optics, a point in which any number of rays of light meet, after being reflected or refracted; as the focus of a lens. 

2. A central point, point of concentration. 

Quotes:

"We don’t need a bigger truckload of information, either.  Our biggest need is a clearer focus on how we should value and use what we already have."
-Dallin H Oaks

"You can't depend on your eyes when your imagination is out of focus."

-Mark Twain

"It is during our darkest moments that we must focus to see the light."

-Aristotle Onassis

"When you focus on being a blessing, God makes sure that you are always blessed in abundance."

-Joel Osteen

Scriptures:

I couldn't find any scriptures on focus so I instead searched for point

Alma 37:44 For behold, it is as easy to give heed to the word of Christ, which will point to you a straight course to eternal bliss, as it was for our fathers to give heed to this compass, which would point unto them a straight course to the promised land. 

My Personal Definition:

You can't focus on multiple things. It is only possible to focus on one thing, we should be focusing on the most important thing, Christ.