Many people associate happiness with a state of “doing nothing”, however the truth is that the most authentic moments of happiness take place when we are busy, working hard, deeply emerged in something that we find interesting, fully focused and committed.
This state of consciousness is often referred to as ‘flow’. I think we all remember those moments of creativity and passion. I would strongly recommend a book titled “Flow” (available here) by Mihaly Csikszentmihalyi who created the psychological concept of flow.
An experiment for you: next time you realize you have just been in a state of flow – try to make a mental snapshot of how you feel, your emotions, level of happiness and inner peace.