 Of the two types of objects, some are ultimately real while others are only conventionally real, and some are not even conventionally real, they are just unreal, or fictions. In defining ultimate truth in the Sautrāntika tradition, we read in Dharmakīrti’s Verses on Epistemology: “That which is ultimately causally efficient is here an ultimately existent (paramārthasat). Conventionally existent (saṁvṛtisat) is otherwise. They are declared as the definitions of the unique particular (svalakṣaṇa) and the universal (sāmāṅyalakṣaṇa)” (Dharmakīrti [PVK] Tshad ma ce 118b).