Sacca-ñāna: 'knowledge of the truth' see: prec., may be of 2 kinds: 1 knowledge consisting in understanding anubodha-ñāna and 2 knowledge consisting in penetration pativedha-ñāna i.e. realization. Cf. pariyatti
Amongst these, 1 'knowledge consisting in understanding' is mundane lokiya, and its arising with regard to the ceasing of suffering, and to the path, is due to hearsay etc. therefore not due to one's realization of the supra-mundane path; see: ariya-puggala 2 'Knowledge consisting in penetration', however, is supra-mundane lokuttara with the ceasing of suffering = nibbāna as object, it penetrates with its functions the 4 truths in one and the same moment, as it is said S. LVI, 30: whosoever, o Bhikkhus, understands suffering, he also understands the origin of suffering, the ceasing of suffering, and the path leading to the ceasing of suffering'; Vis.M XVI, 84. See visuddhi end of article.
Of the mundane kinds of knowledge, however, the knowledge of suffering by which various prejudices are overcome, dispels the personality-belief sakkāya-ditthi s. ditthi The knowledge of the origin of suffering dispels the annihilation-view uccheda-ditthi, see: ditthi the knowledge of ceasing of suffering, the eternity-view sassata-ditthi ditthi the knowledge of the path, the view of inefficacy of action akiriya-ditthi see: ditthi Vis.M XVI, 85.
Maha Thera Nyanatiloka. Manual of Buddhist Terms and Doctrines, Buddhist Publication Society, first edition 1952.