I would like to know what the following sentence means.
Positive change is but a thought away.
I know that the sentence is the same as "Positive change is only a thought away." However, I fail to understand "is only a thought away."
I expect that this sentence could mean one of the following two sentences.
Positive change is a matter of how you think.
Just a little more thought, and you can make positive change.
If you were to replace the first sentence with a plain English sentence, what would it be?