There is no doubt that an individuals’ doctrines and ideologies are what define him and give him a certain perspective on life, and way of dealing with his surrounding environment and society.
قُلْ كُلٌّ يَعْمَلُ عَلَىٰ شَاكِلَتِهِ فَرَبُّكُمْ أَعْلَمُ بِمَنْ هُوَ أَهْدَىٰ سَبِيلًا
Say: Each one doth according to his rule of conduct, and thy Lord is Best Aware of him whose way is right.[17:84]
Consequently, correct doctrines produce the best fruit, and great importance is placed on this matter in the Islamic way of life, while it damns those that fail to use their intellect and free will in choosing the correct path for their intended perfection. And even good actions are worthless if they don’t emanate from correct doctrines, as both are interlinked. And therefore, the first question Man is asked when he passes from this world, will be about his beliefs and doctrines, not his actions.
Faith in a doctrine can never be achieved through imitation, hence the most important law in Islamic doctrines is the prohibition of imitation of others without rational proofs. Knowledge should be gained through research and investigation, contemplation and deep thinking, and understanding of each concept in great detail, in order to arrive at a rational conclusion. In a narration Imam Ja’far Al Sadiq (‘as) says: ‘Whoever enters this religion through the influence of men, they will be the cause of his departure from it in the same way as they brought him to it.’ 
So, considering the importance of religious doctrines in our lives, I will, God willing, try to tackle the main pillars that establish the foundations of correct Islamic doctrines, which will be aided by a series of lectures held by Seyyed Kamal Al Haydari in the seminary of Qom in Iran, on Imamate (Viceregency of Prophethood) and Tawheed (Divine Unity).
Here’s a brief outline:
1- Role of religion in our lives
2- Contents of a religion
3- World view and ideology of religion and their inter-relation
4- Relationship between religion and intellect
5- Relationship between faith and knowledge
6- Relationship between faith and deeds.
A- Discourse One
The need for Religion and Prophets
(i) Chapter 1 – Relationship between rewards and deeds
(ii) Chapter 2 – Laws of the Hereafter
(iii) Chapter 3 – Comparison between the materialistic and divine theories towards realisation of justice.
(iv) Goals of Prophethood
B- Discourse Two
Explanation of the meaning of One Religion with multiple divine laws
(i) Chapter 1 – Islam the seal of all divine revelations
(ii) Chapter 2 – The comprehensive and holistic nature of Islam
(iii) Chapter 3 – The prevalence of Islam and its characteristics as the last religion
(iv) Chapter 4 – The difference between the divine laws and their philosophical theories
 الغيبة،للنعماني،ص 29