When another person disagrees with us, we are not happy. When we disagree with him, he feels the same. There is not be peace of mind for either of us. Yet the Buddha Dhamma means disagreeing with our own mind when meditating.
Anything that causes us to scold, criticise, or answer back, we control. This is to disagree with our mind so that it may be pacified. When wanting to speak, we do not speak; when wanting to scold, we do not scold. When wanting to argue, we do not argue[!] If we want to think too much we stop it and at the same time continuously repeat, “Buddho “. Disagree with oneself and all will be well. If we do not disagree with ourselves, nothing will be smooth and all will be in turmoil.