The FALSE concept of US - We are not the vehicle we drive.
Ourselves - What we think of as what we are, who we are, the nature of our being.
You are not what you think you are any more than you becoming your car when you get in for a drive. You have chosen to experience the ride (of your body), you got in knowing you would not remember but that's the only way you can learn.
If you know everything there is to know you cannot learn anything. Your real self has full access to the akashic records. Your 3d self has only the capability of comprehending 0.01 % of your own knowledge and 0.00+500 0's % of the knowledge you can access via your higher being (your Outside brain).
Actually the figures even with the 500 zeroes added on still fall way way short of the difference but I am hoping you get the idea of it.
So basically what we normally think of as ourselves is a deaf dumb and blind 3d avatar in a data stream of flowing information of which you can sense a drop in the ocean of it and of that drop your understanding of it is a tiny fractional amount.