According to a narration recorded in Saheeh Muslim, the great Sahaabi and military general who had conquered vast swathes of lands for the Ummah, Hadhrat Sa’d ibn Abi Waqqaas (radhiyallahu anhu), had abandoned society and taken to herding camels and sheep in isolation. His son came one day to deliver some Naseehat to his father and to criticize him for his seclusion. 
Hadhrat Sa’d ibn AbiWaqqaas (radhiyallahu anhu) reacted with a punch to his chest. First, he sought refuge with Allah Ta’ala. Then, after allowing his son to say his piece, he delivered a blow to his son’s chest, before proceeding to tell him to shut up. Finally, he finished him off with the following statement of Rasulullah (sallallahu alayhi wasallam):
“Indeed, Allah loves the servant who has Taqwa, is rich (in the soul), and is hidden (from the people).”

In the commentary of this Hadith in Mirqaatul-Mafaateeh, it states:

“Indeed, Allah loves the servant who has Taqwa. That is, the one who steers clear of the Haraam and Doubtful matters, and he (even) refrains from (much of) what is desirable (to the nafs), and permissible.
(As for) “Richness”: An-Nawawi (Rahmatullah alayh)  said: “The intent of richness is richness of the soul. This is the richness that is desired due to his (sallallahu alayhi wasallam) saying: “(True) Richness is richness of the soul.”…
(As for) “Hidden”: (It refers to) The unknown person who is dedicated to the worship of his Rabb and occupied in matters related to (the perfection of) his soul.”

from the majlis 26-01