Why would anyone want to experience ultimate reality permanently?

Some writers say that the experience of Oneness is the aim of life: to experience permanently the state of "no thing", nothingness. Some say that this state is permanent bliss. Some say that bliss is experienced up to the point of achieving Oneness (when form falls away entirely), but then nothingness, not even feelings, remain - the so-called "Void". What is your view? (No flippant answers, please!!)