Joy can only be experienced when we offer our love to Krishna.
Everyone is hankering for happiness because by nature we are happy : anandamayo 'bhyasat (Vedanta-sutra 1.1.12). As spirit souls we are naturally happy, blissful.
There is no peace or happiness in our worldy life. Circumstances create turmoil and annoyance.
When we understand our relationship with God then we all will be happy. It is an essential factor for establishing peace in the world.