Interrupting the Negative Thought

Interesting technique from a book I'm reading called The Little Book of Letting Go:

Instead of trying to replace a negative thought by telling yourself you're really happy (or should be happy) about something, interrupt the thought the minute you recognize it as negative or unhealthy. Then, instead think a "connecting" or loving thought. Examples of connecting thoughts: the last time you really hugged your spouse and were in the moment, a time when you talked to someone who really "gets" you, a specific moment when you felt at one with nature.

If your negative thought was about a particular person, try to think a connecting thought about that person. If you can't, just think a connecting thought about anything or anyone. It's powerful. Try it.