觀無量壽佛經疏 3.46

3.46

六、從此諸寶林下，至有七寶果已來，明其林樹雖多而無雜亂。華實開時，不從內出，斯乃法藏因深，致使自然而有。

Sixth, from "These jeweled groves" down to "bearing fruits of seven jewels," it explains that although the groves of trees are many, they are not disordered. When the flowers and fruits open, they do not emerge from inside; this is because the causal [vows of] Dharmākara were profound, bringing them about spontaneously.