Now that you know what boundaries are, it is easier to understand that they are a form of self-care. When you set boundaries and verbalize them to others, you are recognizing your needs. 

It will help you to understand more about yourself, what makes you feel safer and comfortable. After that, you will know how far a person can go emotionally or physically with you and when that can happen.

So, after understanding your boundaries, you will be able to communicate them to people around you. For example, when you are too overtired physically and mentally, you will learn to say no to working late. You will recognize that you need to rest and take care of yourself.  

Setting boundaries and being transparent with others is a way of managing stress, taking care of your well-being, and creating healthy relationships.