It has also been shown that the vibrations you send out at the cellular level, you also absorb. So when you are sending out negative thoughts, judgments and criticisms, they reflect back to you and you absorb them. This is what causes you to be and feel drain when you are in these states.

This is one of the reasons that it is important to communicate with yourself and ask, what I believe, is it true or beneficial to me and would I like to change my thoughts, perceptions and my life.