First time intarsia knitting pattern question

Hello! I want to make this purse from this website This is my first time to intarsia. I am not exactly clear of the directions when it comes to the intarsia section of the pattern. What does it mean to start intarsia section by making two bobbins of each color? Can anyone give me some helpful helps for this part?? :?? Thanks so much!!!

I recommend watching the instruction video here on this site. Amy explains instarsia well, and explains the whole bobbin thing with the yarn.

Good luck!

Thanks! I forgot about the tutorial on here on intarsia. (oops!)