Kant puts this point by talking of the ‘I think’ that accompanies all my representations. In other words, my experiences come billed as ‘mine’. I do not first become acquainted with the experience, then look round for the owner, and then (provided, against Hume, that this last search is successful) announce that the experience is one of mine.
This is only true from a third-person perspective, not from the subjective first-person perspective. From a first person perspective, there is only experience, not a self which does the experiencing.

