There’s a strong connection between the martyrdom of Imam Husayn (as) and the reappearance of Imam Mahdi (as). The cries of help raised by Imam Husayn (as) on the day of Ashura did not die in Karbala itself. Rather it reverberated with greater intensity with the passage of time. Those who were not present in this physical world but were yet to come too had said labbaik on hearing his (as) plea....