In the first few chapters of the book, the author talks about how "yoga attempts to create a state in which we are always present-really present-in every action, in every moment." This means that whether we are working, cleaning the house, or doing our asana practice we should strive for presence. Doing our best at everything, but without attachment to the outcome.
This is a very difficult part of the practice. Staying present at all times. It is easy for me to zone out at work or with friends. Being fully present is work, but the more we do it, the easier it becomes.