What does picking up and knitting wraps together mean when following a pattern?

Assuming that in the previous row you have wrapped stitches it is now time to pull those wraps up onto the needle and knit them together with stitches to prevent holes from forming in the knit fabric.

Knit up to the next wrapped stitch but do not knit the wrapped stitch yet. When viewing the knitting from the public (front or knit) side, insert the tip of the right needle into the wrap on the front side of the work and pull it up, over the stitch it is wrapped around, over the tip of the left needle and to the BACK of the work. The wrap is on on the needle, behind the original stitch. Knit the wrap together with it's stitch as if you were knitting two together through the back loops.

When viewing the knitting from the private (back or purl) side, insert the tip of the right needle into the wrap on the BACK side of the work. You will have to peek over the top of your needles to see where to catch the wrap. Pull it up, over the stitch it is wrapped around, over the tip of the left needle and to the BACK of the work. The wrap is on on the needle, in front of but to the left of the original stitch. Purl the wrap together with it's stitch as if you were purling two together.