According to Osho, bliss is the spontaneous, causeless joy that follows inner illumination like a shadow follows light; it is not sensory pleasure but the fragrance of awareness. The Divine's form is light itself—pure, formless consciousness. On the inner path, first comes light (seeing), then love and bliss (being), as natural consequences.
Switch on your inner light by being aware, and a deep, reasonless happiness appears; God is that light, not a shape.