The mind always has expectations. In order to experience pure consciousness, this nature of the mind must disappear.
An artist paints with focus; the painting becomes complete only through ekagrata (one-pointedness). Similarly, whatever is our goal, we need focus on that to make it complete.
Where there is concentration, there is harmony. Happiness is derived from concentration of the mind. Whatever we focus on we will become that.
We need to focus on our destination. Let the thoughts arising in your mind pass by, like watching scenery through the window of a car. The thoughts cannot affect you if you don't allow them to capture your attention.
Chant your mantra while engaged in work. This way, the mind will be continuously focused on Him.
How to attain concentration? There are no short cuts. Constant practice is needed. In the beginning, it is a great thing if by chance we get even one or two minutes of concentration in an hour. We should make continuous and sincere effort without stopping until we gain one pointed concentration.
If we continuously maintain Self-awareness, we will be able to experience peace and happiness.