Srimad Bhagavat Gita commentary chapter 5 verse 28

Chapter 5 verse 28

 “With senses, mind and intellect controlled, having liberation as his supreme goal, free from desire, fear and anger, the sage is verily liberated forever”

Fear and anger are 2 sides of the desire coin. Fear happens due to uncertainty of a certain future where there is an anticipated desire and anger happens when a particular desire doesn’t come to pass in reality. To rid of all forms of desire is a state one can reach with complete control of the mechanism of body, mind and intellect. This is what is achieved by the unyielding practices of the sages or Vedanta student.