A general conclusion is needed to round of your research. The reader is then certain of what your view is. The revisions of your views based on appropiate sources will have already been given in your main body of text.
The conclusion allows you to have the final say on the issues that you have raised in your paper, to summarise your thoughts, to demonstrate the importance of your ideas.
Draw everything in together
Summarise the main themes
State your general conclusions
Make it clear why those conclusions are important
Do not include new material
In the last sentence, sum up your argument very briefly
Set the issues in a broader perspective
Discuss what you’ve failed to do
Suggest further questions of your own