The word of the Lord is sharper than any two-edged sword. It can divide and separate that which is of the Lord and that which is of the flesh. It is a discerner of the soul. Therefore meditate on his word and see how your mind will get sharpened. The word of the Lord is spirit and life. There is life in the word. It is like a seed planted and when watered will produce fruit of its kind. When you need peace then meditate on words of peace. The peace of the Lord will fill you. It becomes flesh to you. This is what it means to flesh out His word. Unless the word becomes flesh it is not tangible. What is tangible is seen and felt. God created the worlds through His spoken word. He spoke and the worlds were formed. So also when you speak His word of peace then you will feel His peace. Your tongue is a creative force. It can create out of nothing, something.
I worked as a Consultant Psychiatrist in UK and Australia for over 40 years.