It is said that:
Open your mind before you open your mouth.
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This means think before you talk.
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We often react to a newly developed situation, and do not respond, this is the result of our fast mind/fast thinking (aspect or feature of our brain).
The slogan suggests that we should use our slow mind/slow thinking (aspect or feature of our brain).
In our brain (brains), the two features are present all the time.
If we react, we are using the fast feature/activity and if we respond, we are using the slow feature.
So, we have to train our mind (brain) appropriately to respond rather than to react.
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