Translation of "Unbewusste" in English

Bis er verstand, dass das unbewusste System ...

until he started to understand that the unconscious system--

Nerven, die unbewusste Vorgänge wie den Herzschlag steuern,

The nerves that control unconscious processes such as the heartbeat

Was die Seele ist, wissen wir ebensowenig wie, was das Leben ist. Geheimnis genug, um unsicher zu sein, wieviel Ich Welt und wieviel Welt Ich ist! Das Unbewusste aber ist wirklich auf jeden Fall, denn es wirkt.

We know just as little of what the soul is as we know of what is life. It's mysterious enough to be uncertain as to how much of the world I am and how much of me the world is. Nevertheless, the unconscious is real in any event, because it works.