Sermon 1 
Meaning of distortion (tahrif) in general 

Description and examples of the distortions that have taken place in regard to the historic event of 'Ashura.

Sermon 2 
Factors responsible for these distortions

Further examples of distortions

Sermon 3 
Distortions of meaning and their cause

Character of a sacred movement

Sermon 4 
Responsibility of the 'ulama and the common people in regard to these distortions