It means two things, and the first is having the intention to reside here. That's where we're going to confirm, through an expression of that declaration of intent, that those who are seeking to meet the requirements for citizenship actually intend to reside here. We didn't do that before. We're going to confirm to one and all that it is physical presence that is required, not virtual presence, not picking up mail every six months from a post office box, and not staying in touch by Skype. It is physical presence within the borders of this country that counts as residence.
In fact it always has been the requirement. We weren't able to enforce it, and under Liberal governments we failed to enforce it in rather dramatic fashion.