The great bliss state is the state of reality - where we actually are, right here and now. It is not some elaborate place far away from where we are. The wonderful thing about the Buddha's revelation, the Buddha's insight, is that this reality itself is the great bliss state, that which he first called "Nirvana", the extinction of all suffering, which he came to describe as "bliss void indivisible."
The extinction of suffering and the achievement of perfect happiness and the reality of perfect happiness is the reality of our world. This was the Buddha's good news.