At it’s core mindfulness is the art of living in the moment and being aware of yourself and your surroundings.
I know that sounds extremely simplistic, but that is the reason that mindfulness works.
When you are fully aware of you, your feelings, your thoughts and how all of that affects you you can then take control of those things.
You may not be able to change your environment but you can change the way you react, respond or think about that environment.
Having control of you will give you the inner peace that you are looking for.
That, alone, reduces your stress levels which improves your health.
Beats the crap out of drugs.
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