The context highlights Jawahar Singh's deep emotional bond with Sundariya, as he addressed her as 'Mausi' and wrote a letter to his father just to know about her well-being. The phrase 'जी भरा जाना' used for Hira Singh also indicates the family's sorrow upon her separation. Therefore, Jawahar Singh would naturally feel immense sadness and loneliness. The second part requires a student's personal reflection on the universal feeling of sorrow, longing, and a sense of loss when a loved one goes away.