How to concentrate

Tratak: Sit in padmasan pose,erect.Gaze at a picture of your deity for some time.Then close eyes and visualize the form of the image.Repeat several times.Think of a lotus flower blooming in the heart or of a candle lighted.

Focus at a point between the two eyebrows.
Invoke the name of the Lord and then stop and imagine that the same voice is coming out from the heart.
Think always positively;leave ;anger,jealousy and hate.
Ponder over the good things in life.Visit holy places,see holy men,study holy scriptures.
Eat only pure food,befriend good beings and perform duty with out a self motive.
When mind is relaxed,divine feelings arise in the heart.Mundane desires,allurement and attachments drive a person away from God.But when one develops love for God in the heart.It is filled with joy.Kind and gracious deeds and feelings for fellow beings take one nearer to the Lord.
It is advisable for fellow human beings to do prayer regularly.One should unflinching faith in Him.He should feel his presence within.One should detach himself from the pretty things of the world and look towards God to bless him.Soul-the part of the Almighty_is the only friend,guide and philosopher one should Give up Ego and should not think that he is the doer.
Exercises
Lie down flat on Bed,relax from feet to head.Inhale deeply and pronounce Om Om Om and then exhale while pronouncing the same mantra mentally.Think of the presence of God and consider him as your Father and mother.While inhaling concentrate on muladhara chakra and while exhaling feel that the vital force is flowing upwards through the spinal channel,thus revitalising the body.
Fix your mind at Muladhara and feel you are the earth element;then on Swadhishtaha chakra and think you are the water element;then meditate on manipura chakra and feel you are the fire element,on Anahate chakra and feel you are the air element,onVishudhi chakra and Feel you are the air element,on Vishudhi chakra and think you are ether and then on Ajna chakra.