There are no two worlds — saṃsāra and nirvāṇa (individual existence and supraindividual Being) — but one Consciousness experiencing itself in two relative ways. The One of Being and existence is absolutely inconceivable, hence all self-contradictions and logical inconsistencies in our transcending thought about it. God is unthinkable.

“The unthinkable identity of Substance and its modifications, so definitively separated for our thinking, becomes Transcendence for the thinking that founders on it.” — Karl Jaspers