The arising of the sense of being or the non-verbal feeling 'I am' was your first or primary experience. Without this primary experience none of the other experiences would have followed, you had 'to be' before anything could be. But as your abidance in the 'I am' becomes firm by your 'Sadhana' (practice) a stage comes when the 'I am' drops off and with that all experiences or memory will vanish leaving you in your True Absolute state.