It is singular how soon we lose the impression of what ceases to be constantly before us. A year impairs, a luster obliterates. There is little distinct left without an effort of memory, then indeed the lights are rekindled for a moment - but who can be sure that the Imagination is not the torch-bearer?
I dislike modern memoirs. They are generally written by people who have either entirely lost their memories, or have never done anything worth remembering.
Macbeth: How does your patient, doctor? Doctor: Not so sick, my lord, as she is troubled with thick-coming fancies that keep her from rest. Macbeth: Cure her of that! Canst thou not minister to a mind diseased, pluck from the memory a rooted sorrow, raze out the written troubles of the brain, and with some sweet oblivious antidote cleanse the stuffed bosom of that perilous stuff which weighs upon her heart. Doctor: Therein the patient must minister to himself.