asiddhamākāśāmbhoruhādīnām arthakriyāsāmarthyam tadvikalpānāṃ svavikalpavāsanāparipākamātreṇaivotpattir nirālambanatvāt
The capacity for fruitful activity of sky-lotuses and such things is unproven, [since] the conceptualization of them arises merely from the maturation of conceptual impressions, being without any [real] basis.