I`m not sure I get it either to be honest.
There is no substitution for monitors.
If you want to make music to a professional standard then you need some good nearfields.
Until then you will never get a very clear picture. And although constant cross referencing on other speaker systems will help to a certian extent, you can never make the minor adjusments on the fly that you will need to do to really perfect a mix, as you "look" into it.