法華玄論 6.185

6.185

答：但取無漏智慧，故文云「自在不繫無所依求」。又稱門外者，是無漏也。大車既通始終，義可知也。

Answer: It only takes uncontaminated wisdom; hence the text says: "At ease, unbound, without dependence or seeking." Furthermore, referring to being outside the gate signifies being uncontaminated. Since the great carriage encompasses beginning and end, its meaning can be known.