The Mind
Citta Sutta  (SN 1:62)

“By what 	is the world led?
By what 	is it dragged around?
What 	is the one thing
	that has the all
	under its sway?”
“By the mind 	is the world led.
By the mind 	is it dragged around.
The mind 	is the one thing
	that has the all
	under its sway.”

See also: SN 35:23; SN 35:82; Dhp 1–2