Anointing is much more than that as well.
Oil is symbolic of the Holy Spirit. Once a month, I take my consecrated olive oil, and make a trip through my house. First I bind a hedge of protection around the house and ask for the sweet presence of the Holy Spirit to fill it.
See, hedges of protection are permeable one way-------->out. And anything of the Adversary can't stay inside when the Holy Spirit is there. Then I ask for warrior angels armored for battle to be stationed inside and out to capture anything of the dark that might be present, come against us, or try to flee, and affirm to Jesus that I give them to Him, to do with according to His perfect will.
Then, I go and anoint the windows, the doors, always leaving one egress open so the dark has a place to exit. When I have done all that, then I anoint and close the last door or window.
I have been told by one of my wiccan friends that it's like walking into an inferno to visit my home. She made that statement just after I finished anointing our home. My Chrisitan friends tell me it's incredibly peaceful to visit my home.

I have hope for my wiccan friend yet.... One truly given over to the dark wouldn't even be able to enter. She just perceives it as heat.
Clio