Wonderful quote, if you can ignore the "loose". I see people use loose in place of lose all over the place and it drives me crazy! Loose and lose don't even have remotely similar definitions! Get it right people!End of rant.
I think the point is that you are content in every aspect of life. Change isn't necessarily a bad or good thing, sometimes it happens and sometimes its needed. Regardless, be thankful for where you are at.