(譬喻)于阎浮提立针,以一芥子自忉利天坠下,使贯其针锋。喻值佛之至难也。涅槃经二曰:芥子投针锋,佛出难于此。止观五曰:盲龟由何值浮孔,坠芥岂得下贯针锋?辅行五曰:如针锋竖阎浮提,以一芥子从忉利天投阎浮提,何由可得贯针锋上?