“When I talked of your being altered by time, by the progress of years,” said John Knightley, “I meant to imply the change of situation which time usually brings. I consider one as including the other. Time will generally lessen the interest of every attachment not within the daily circle—but that is not the change I had in view for you. As an old friend, you will allow me to hope, Miss Fairfax, that ten years hence you may have as many concentrated objects as I have.”
Emma by Jane Austen chapter 16 volume 2
In the bold part I'm confused about what is the "one" and the "other". Is he saying the passpassage of time includes the change of the situation?