Knitting pattern question

I am trying to finish an afghan that my dear mother never finished before she passed away,and the beginning instruction says to"cast on one stitch and K 2 into it"…Is this a front and back stitch or am i really off track?I am a "literal"person and this doesnt make much sense to me…Help!

Yes, I would say it is knitting into front and back of that one stitch.

thank-you!