Premanand Maharaj Ji
How can I make my restless mind concentrated for meditation and naam jap?
Three ways to concentrate the mind
Pull the mind back to the Name wherever it strays, or see Bhagwan in whatever it goes to. If you can do neither, keep your attention on the Name and feel that it is deleting the dirt from your mind.
Wherever the mind goes in the world, we should try to see Bhagwan there: Bhagwan in the form of this thing, in the form of this person.