I don't know but pray to god and all the things you hunger will be filled by lord jesus Christ
M1 stands for Make One. A relevant link explaining in images how to do so is provided below.
knockouts or strikeouts ya
Probably means Purl, Purl
slip 1 - insert needle into stitch as normal then just pull it off the left needle onto the right without knitting or purling it
slip one as to purl ... slip the next stitch but put your needle in as if you are going to purl and then slip the stitch off