In regard to the world it covers such views as...
In regard to the world it covers such views as: the world is like this or like that; it has such and such a law; it goes forward in such and such a way; its pursuer does not pursue such and such objective; it has or has not an origin; it has or has not a purpose. In regard to man the views which constitute the conception of the world are such as whether man has any innate nature; whether he is free or predestined; whether he is, in the words of the Holy Qur'an, a chosen being.
As regards man the questions are: Whether society has a law independent of the laws governing the individuals; what laws govern society and history; and similar other questions. As ideology is always based on a particular conception of the world which explains why the world, society or man is like this or like that, and determines what actions man should take and what sort of life he should lead. The answer of every 'why' of an ideology underlies the world conception on which it is based.
Technically every ideology is a sort of 'practical wisdom', whereas every conception of the world is a sort of 'theoretical wisdom'. Naturally every practical wisdom is based on a particular theory. For example, the practical wisdom of Socrates is based on his particular outlook on the world, which forms his theoretical wisdom. Similar is the relation between the practical wisdom of Epicurus and others and their theoretical wisdom.
As various people have different conceptions of the world naturally their ideologies vary. Now a question arises why there are so many conceptions of the world or so many cosmologies? Why should one school of thought look at the world in one way and another school in another way? The answer to this question is not so simple.
Some people have gone to the extent of asserting that it is the class position of an individual that determines his attitude and outlook and puts special glasses on his eyes through which he sees the world. According to this theory the methods of production and distribution create reactions that shape the mentality and the views of an individual in a certain fashion depending on how favourably or adversely he is affected by these methods.
The views thus formed affect his judgement and his evaluation of the things.