What is the source and meaning of this quote of the Buddha's: "Everything rests upon the tip of intention"?

I've heard this quote in a few places, attributed to the Buddha. Prominently, Tara Brach uses it . It varies sometimes: - "Everything rests on the tip of one's motivation." - “Everything rests on the point of intention.” But the gist is always the same. 1. Where in the Tripiṭaka (or elsewhere) does this quote originate? 2. How can we understand this quote? What is this "tip of intention"? Is it perhaps translated from [mano, as in 'intending mind']( https://discourse.suttacentral.net/t/on-the-first-lines-of-the-dhammapada/18718?replies_to_post_number=16) , or some link in the chain of dependent origination, or something else?