“When he heard this,
The man was shocked.
He went away grieving.
ὁ δὲ στυγνάσας ἐπὶ τῷ λόγῳ ἀπῆλθεν λυπούμενος, ἦν γὰρ ἔχων κτήματα πολλά.
This story about the young man walking away can be found in Matthew, chapter 19:22, and Luke, chapter 18:23, but slightly different. Mark said that this man was shocked at these words of Jesus (ὁ δὲ στυγνάσας ἐπὶ τῷ λόγῳ). He went away pained or grieving (ἀπῆλθεν λυπούμενος), because he had many possessions or a lot of property (ἦν γὰρ ἔχων κτήματα πολλά). This rich young man was willing to listen to Jesus, but could not bring himself to totally commit his life to him, by giving up his worldly possessions. Thus, he went away very sad, because he realized his own situation, that he lacked the urge to make that final commitment to Jesus, by getting rid of his earthly wealth.