And as SBG is a book I follow, the above shloka is Sri Bhagvan Krishna singing, "You are a part of me, but bound by Prakriti (Material Nature) [Maya] you are struggling with the six senses. (5 senses + the mind)
In my understanding,Maya is the illusion where we forget that we are spiritual beings with human experience and tend to believe that the human experience is the reality.It is this Maya (illusion) that makes us believe that we are seperate from the creator,while in reality our source is the oneness with creator.