We don’t need more money, we don’t need greater success or fame, we don’t need the perfect body or even the perfect mate-right now, at this very moment, we have a mind, which is all the basic equipment we need to achieve complete happiness.
Material objects give rise to physical happiness, while spiritual development gives rise to mental happiness. Since we experience both physical and mental happiness, we need both material and spiritual development. This is why, for our own good and that of society we need to balance material progress with inner development.