Concentration and love are one - like two sides of a coin. Love should be there if you want concentration.
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.
Spend each moment intensely focused on the spiritual goal of life. Take a pledge to put effort in this direction.
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.
The vision of God is possible with the power that is gained through concentration of the mind.  At that time we will come to know that God is everywhere, everything is God.
Where there is concentration, there is harmony. Happiness is derived from concentration of the mind. Whatever we focus on we will become that.
We should live every moment with awareness.
When karma (action) is performed with awareness and compassion as its driving force, it accelerates one’s spiritual journey.