Even in Pali Buddhism there is the Void, called sunnatta, meaning emptiness. Nibbana can be realized by the sole path of contemplating all conditioned things as empty, soul-less (anatta), devoid of a permanent and personal entity. Nibbana is the Unconditioned and hence "It is just because there is no sense experience that in Nibbana there is happiness," said Buddha.

-- Notebooks Category 19: The Reign of Relativity > Chapter 5: The Void As Metaphysical Fact > # 29