Dr. Del Tackett, co-host of the 'Cross Examine' television program, explains on How True is Your View? that your worldview is your set of truth claims on issues like who you are and how the world came to be. Worldview is what drives your actions, thoughts, and emotions --- every aspect of your life.
And just like a jigsaw puzzle, which has hundreds of pieces that fit together into a lovely picture, a worldview has many individual truth claims about reality. But when those claims are not true to how God made the world, the pieces don't fit and the picture is anything but pretty.