Mind precedes all mental states.

Mind is their chief, they are all mind-made;

If with an impure mind,

one speaks or acts;

discontentment follows them,

like the wheel that follows the foot of the ox.

– DhammaPada Verse 1

Mind precedes all mental states,

mind is their chief; they are all mind-made;

If with a clear mind,

one speaks or acts;

happiness follows them,

like a never-departing shadow.

– DhammaPada Verse 2

Related Teachings:

Eight harmful and beneficial qualities ↗️ - Qualities that lead to decline and to growth in both secular and spiritual domains

Developing the mind by classifying thoughts into two categories | Right Intention (MN 19) - The Buddha describes how he cultivated his mind with a careful categorization of thoughts to cultivate and thoughts to eliminate, understanding their relationship and how it inclines the mind’s underlying tendencies.