After reading this question it came to me that maybe that is what is meant by when we say "I have fallen in love"!! For I have always asked people, 'What are we falling from?' and no one knows.
I have written a hub on this or should I say, answered another hubbers' question relating to it.
When we say "We have fallen" for anything, is it the same as your question about our "Higher Self"?...as for the other hubber here on this page who refers to God and what it means to him, I have to ask him if we are made in His image, then how come we are all so different, so which image are me made after? There are many imagages. It isn't written in the Bible so I take any answer to that question as your own personal conclusion that suits you. It is not in the Bible, I know.
Maybe it's our WILL that is our Higher Self.
I am more inclined to go with that one, as no one really knows, we either follow the sheep, or think for ourselves and work it out to suit ourselves. If you have NO WILL to do anything, you are depressed, down, and lethargic, if you are on top of your game, full of life, have the WILL to do anything, full of energy and powerful, you are at the top of your HIGHER self. Which is where God wants us to be, full of life, having abundance in all things.