Use the video to learn how and why to edit your videos. 

Analogy for Understanding: Editing in Lightroom is like polishing a gemstone. The camera captures the "raw" stone, but it is through careful cutting (cropping) and polishing (adjusting light and color) that you remove the rough edges and bring out the internal brilliance that was there all along. Just like with a gem, if you polish too hard, you might ruin the stone, but the right amount of work makes the final product shine.