Wise people not only develop the ability to seek for external objects to satisfy sensual desires, they develop the potential for creativity to create in themselves various positive mental qualities and inner happiness. We are usually advised by the Buddha to develop five skillful qualities as the constant factors of the mind, namely joy, delight, relaxing calm, happiness and concentration. These five qualities will keep away all negative emotions and unhappiness. It is the development of the ability to create happiness or to be happy. As this second kind of happiness is an internal mental quality independent of material objects outside, the person who has developed it becomes, in contrast to the pleasure-seeker, the possessor of happiness
Unfortunately, the pleasure-seekers or happiness-pursuers, being engrossed in the search for external objects to gratify their senses, fail to develop this potential for the inner creativity. This creative or formative potential left undeveloped then works out for their inner lack of happiness and for various negative mental states. Thus in this way the pleasure-seekers, while seeking external happiness through the gratification of the senses with material objects, create or form inside themselves stress, anxiety, worry, depression, fear, insomnia and all kinds of negative mental states, and even clinical mental disorders.