Operation of spiritual energy, unamenable to lapse - The third and the final step of the threefold Karaṇa (3) (operation of spiritual energy) for the attainment of Samyaktva (right faith);
that Adhyavasāya. which lasts up to the final attainment of Samyaktva.
nivartanaśīlaṃ nivarti, na nivarti - anivarti - āsamyagdarśanalābhād na nivartate.
(ViBhā 1202 Vṛ Pa 458)