The mind is insatiable. This is the inner core or
So the devil has free rein
Make the mind impermeable to the devil
How? Mediation. Discover the joy of self.
“Even if life gave you at one time everything you wanted — wealth, power, friends — after a while you would again become dissatisfied and need something more. But there is one thing that can never become stale to you — joy itself. Happiness that is delightfully varied, though its essence is changeless, is the inner experience everyone is seeking. Lasting, ever new joy is God.
Finding this Joy within, you will find it in everything without. In God you will tap the Reservoir of perennial, unending bliss.”
~ Paramhansa Yogananda