Welcome, Irene

All I know is the obvious, I’m afraid – it comes from a proverb whose roots are probably lost in the mists of time – namely:
A rolling stone gathers no moss.
What this means is clearly that a moving body forms no attachments, and whether this is A Good Thang or A Bad Thang depends on your point of view!

You’ll find equivalents of the saying in other languages too, including at least two to my knowledge – there are probably others.

Spanish:
Piedra movediza no cría moho
and Dutch:
Een rollende steen vergaart geen mos