"It is an exquisite and beautiful thing in our nature, that, when the heart is touched and softened by some tranquil happiness or affectionate feeling, the memory of the dead comes over it most powerfully and irresistibly. It would seem almost as though our better thoughts and sympathies were charms, in virtue of which the soul is enabled to hold some vague and mysterious intercourse with the spirits of those whom we loved in life. Alas! how often and how long may these patient angels hover around us, watching for the spell which is so soon forgotten!"

Source: Charles Dickens (2013). “Delphi Complete Works of Charles Dickens (Illustrated)”, p.17059, Delphi Classics