I can only note that the past is beautiful because one never realises an emotion at the time. It expands later, and thus we don't have complete emotions about the present, only about the past.
Virginia WoolfTalents of the novelist: ... observation of character, analysis of emotion, people's feelings, personal relations.
Virginia WoolfReading [poetry], you know, is rather like opening the door to a horde of rebels who swarm out attacking one in twenty places at once - hit, roused, scraped, bared, swung through the air, so that life seems to flash by; then again blinded, knocked on the head - all of which are agreeable sensations for a reader (since nothing is more dismal than to open the door and get no response).
Virginia Woolf