To a mind that is still, the whole universe surrenders.Chuang-tzu
The absolute most difficult task of an entrepreneur is to find inner-peace while everything around them is chaotic. It is more than simply the inability to relax - it is a deeper problem of conflict - where an entrepreneur is in a constant state of anxiety. It is near impossible for an entrepreneur to stop the mind - but it is critical you learn how.
The first step in allowing your mind to become still - is removing the feeling of guilt that you feel when you are not working. So many entrepreneurs are not able to stop, because they equate stopping to failure or laziness. Entrepreneurs are only comfortable when moving, in a chaotic way - toward some objective... and cannot live in the moment.
But there is something powerful in a mind that is still. There is a level of enlightenment and clarity that is difficult to achieve when in a constant state of movement.
As the mind becomes still - it will begin seeing all of the current challenges, opportunities and events as moments in time. Where they have no permanence, but rather are just experiences that have a beginning and an end. A still mind will force and allow you to focus.