It is something easy to do when one trains in the right way and that is where meditation and self-control comes in. As a spiritual person my brain underwent a period of adjustment to remove thoughts of worldly things. It was, however, helped by the Spirit which directed me. It took me through a learning period wherey many things were revealed and one of them was how to stop the brain from running wild when it is more desirable to have it under control.
Meditation is about listening rather than talking or thinking. It about being still and quiet and letting new thoughts come to you while getting rid of the learned for the unknown. This is how the Spirit within speaks and it needs that open channel to get through.
With memory of my reincarnation and a link to the Spirit it is something I am used to because it has been my guide through my life. When a problem comes my way rather than rush to resolve it I ask the inner power and then meditate on it. It is amazing how solutions are then arrived at, often in a way you would never dream possible.
As an example of what I mean it happened that someone put unpleasant graffiti on my garbage bin a couple of days ago. It did upset me but I went for my walk regardless of all the while asking the Spirit what to do. As a person who despises things out of place the red and white trails of paint over the bin were rather offensive. Later I felt to take the bin inside and then apply methylated spirits to it. This removed all the graffiti and made my bin shiny new again.
In my opinion people have this power within to solve problems while meditation and stillness is the way to engage it. Often it comes through with thought and ideas we have never contemplated and that's how progress is made andventions happen. Instead of being upset and letting our emotions get the better of us it will be more worthwhile if people could try this method to make their life a lot easier and bring more peace to the world.