The oldest document I know of involving the law of attraction is called “isis the prophetess.” It is from the beginnings, supposedly, of the ancient egyptian empire. It is still respected today, chiefly among those who call themselves alchemists.
Alchemists, judging by their literature, say that the knowledge inherent in alchemy must be protected from those who would “misuse” it. Basically, they sought to communicate their ideas in ways that those who would use the knowledge towards their own ego-purposes would misunderstand it and find themselves frustrated.
for this reason, the metaphor of creating gold has been an alchemical metaphor throughout the ages. Those who “understand” understand the metaphor to be about the many, the whole, the one: those who misunderstand have typically spent their life in a laboratory trying to find a way to turn actual lead into actual gold.
it's debatable whether one who understands could actually turn lead into gold. It is a sure thing that if it's possible, one who could would only do so for reasons beyond their ego-desires. It's not very debatable that any who didn't understand could manage to turn lead into gold: therefore, alchemy protected it's knowledge by having any who would misuse it's principles become involved in something of a fool's errand.