Hakim al-Umma Mawlana Ashraf Ali Thanawi (Allah have mercy on him) said,

‘Perfection (kamal) is that an individual can successfully overcome a state (hal) without the  state causing any change in him.

Great insight (baseerah) is needed to recognize such an individual. His condition is similar to that of the novice aspirant. Common people can not differentiate between them.

To recognize a spiritual-graduate (muntahi) is not an easy thing. It is for this reason that people recognized those who were still traversing the path(mutawassit) but failed to recognized the perfect awilya and Prophets.’

Waaz e Meerut, Khutbat e Hakim al-Ummat, volume 8, page 394