Why does one not feel a burning sensation upon hearing words of disbelief, and what is the way to reach the rank of feeling anger for the sake of Allah?

Allah is angered by the disbelievers and becomes angry when His sacred limits are violated. His anger is real, befitting His majesty. Allah loves those of His servants who become angry at what angers Him. The anger of a Muslim when the sacred limits of Allah are violated is a sign of his love for the religion and his zeal for it. This anger impels him to sacrifice himself to exalt the religion of Allah, enjoin good, and forbid evil. The healing of the believers' hearts and the removal of the rage from their hearts are objectives of the Lawgiver, and this is achieved by fighting those who impugn the religion. Anger for the sake of Allah is the Sunnah (definition) of the Prophet, and a sign of sincere faith and love for Allah. This can be attained by increasing one's love for Allah in the heart, contemplating His wisdom in His law, supplicating, and striving sincerely.