Never-ending nothingness forever; that is where we begin. Absolute nothing. No space. No time. No energy. No subatomic particles. No force fields. No laws of mathematics. NOTHING.
Everything else is SOMETHING. Matter. Laws of physics. Unicorns. Perceptions. Consciousness. Even the mere possibility that something exists (like God).
Reality could have been nothing, or it could have been something. Nothing would seem to be the most natural state of affairs. But we know for sure that something exists – because we perceive something. Quite simple, really.