Critical spirituality suggests futures that resist the present and reach deep into the past to generate futures that resist definition, challenging us as both individuals and societies to be our best, do our best and dream our best. This calling rethinks humanism for a humanity liberated from definitions rooted in limits. This chapter explores the potential of thrival to disrupt our assumptions about "reality". It is anchored in the critical futures tradition that offers a rebellious humanism, which at its best offers a host of heterodox and paradoxical visions rooted in the critique of those forces that seek the closure of human potential.