It is true conviction without being sectarian which becomes the firm ground for dialogue. There should not be any feeling of superiority of their respective traditions in the minds of dialogue partners. The feeling of superiority can mar the very spirit of dialogue. Dialogue should never become polemics. Polemical style is he very anti-thesis of dialogue.
Polemics try to prove the other wrong while dialogue is conducted to understand the other.
Dialogue should not only be conducted to understand the other but also should respect the integrity of the other. No dialogue can be conducted if there is no respect for integrity and convictions of the other. The idea of dialogue should be to explain ones point of view and not to convert the other to ones own point of view. Even a slightest attempt to convert the other to ones point of view will destroy the spirit of dialogue. It will then be an attempt at conversion and this will lead to resentment.