From a certain point onward there is no longer any turning back. That is the point that must be reached.
Kafka isn't merely saying that commitment requires sacrifice—he's identifying something stranger and more unsettling: that we often don't recognize the threshold until we've already crossed it. The point arrives not as a dramatic fork in the road but as a quiet realization, retrospectively, that we've become someone who cannot go back. Consider the person who leaves a stable career for art, not in a single brave gesture, but through years of stolen evenings and neglected opportunities elsewhere—they reach Kafka's point not when they resign, but when returning to their old life becomes genuinely unthinkable, not because of pride but because they've atrophied in that direction. What matters here is Kafka's refusal to flatter us with the notion that reaching such a point is always a choice; sometimes it's simply what happens when we stop hedging our bets.