The portrait of the parent can never be quite completed in the mind of the son or daughter.

As long as time lasts it must be left unfinished.
Nevertheless, the inevitable photography of time upon the mental plasm does print at last a very substantial portrait of the parent, a very well-filled concept in the child mind.

And the nearer a conception comes towards finality, the nearer does the dynamic relation, out of which this concept has arisen, draw to a close.

To know, is to lose.
When I have a finished mental concept of a beloved, or a friend, then the love and the friendship is dead.

It falls to the level of an acquaintance.