What is the assurance and evidence that gives us confidence that our messages (the notes) reach Imam Al-Mahdi (may Allah hasten his reappearance) and that he will read them? Also, when we turn to him with our hearts and address him, what is the significance of writing those messages (the notes)? We are always told to face the Qibla at the time of the Adhan and greet the Imam (may Allah hasten his reappearance) and ask him to pray for us after he completes his prayer. However, there is a difference in prayer times between cities; how should I do this if the Imam is in another city where the Adhan has already been called and he has completed his prayer? It is mentioned that the Imam (may Allah hasten his reappearance) is present with everyone who remembers him. Should women wear hijab in such cases?