If you do a Google search on "Blessing Cleansing your Home," you will get some ideas...I guess, the nature of the cleanse depends on your own personal philosophy/religion and what you want to have cleansed. For example, removing negative energy; or removing items that might be considered "sinful" or that might distract you from your spiritual focus.
I don't know a whole lot about it all, since I just barely looked it up myself after reading your post...
As for the Blessing part, I would guess that that would be a way of dedicating yourself, and others in your home, to a renewed spiritual focus, to follow Christ, or Muhammed, or Buddha, or whatever you choose to follow.
I wouldn't do it unless it's something you're really comfortable with, and that is done in the way that you want it to be done.
I don't know a whole lot about it all, since I just barely looked it up myself after reading your post...
As for the Blessing part, I would guess that that would be a way of dedicating yourself, and others in your home, to a renewed spiritual focus, to follow Christ, or Muhammed, or Buddha, or whatever you choose to follow.
I wouldn't do it unless it's something you're really comfortable with, and that is done in the way that you want it to be done.