The opposite feeling is when we are doing something we really don't want to be doing. We check our phone every 2 minutes, watch the time, and get distracted by anything else other than our task at hand.
In my busy life of juggling many things, I have developed some form of Attention Deficit Disorder, and I can't seem to stay focussed on one task at a time. I work on about 5 things at once, and then my phone calls out to me and scrolling my Instagram feed, or someone Skype's me and I get into a conversation and forget what I was working on....and so it goes on.
When we flow and are concentrated on one task at hand without any distractions, our mind is in order.
One of the ways I have found this calming sense of flow is when I work on something fun, colourful and creative...like colouring-in. Those adult colouring-in books are amazing, as are mandalas. They are therapeutic and the world around you can disappear while working on them.
It is so important to find a hobby, away from work, life, chores, tv, eating...something you can get stuck into even if it is just once a week, something that will help you find that sense of flow.
Enjoy the flow!