How is contenment derived ?

External objects fail to bring happiness .One may acquire new material possessions , a position with more responsibility , and a home in the country ,but there always remains the same mind .The mind may be stilled and at peace for a short time on attaining ,the desired object ,but eventually it tires of its new toy , and seeks pleasure elsewhere .Contenment is derived from the approach and attitude toward the external world , not from the objects themsleves .

Swami Vishnu devananda from the book "Meditation & Mantras" pg .2