We often find ourselves asking, " Why hasn't Allah s.w.t responded to my Du'a?" We're told to bear patience but slowly our hope diminishes with each passing day. Is there something wrong with the way we're making our Du'a? Call upon him discusses 21 practical steps on how we can nurture our relationship with Allah through our Du'a. It teaches us how to strengthen our trust when we are required to stay in faith throughout the long wait after the Du'a has been made. Written with the sole intention to inspire people to have unquestionable faith in Allah, Mizi Wahid shares his wisdom in understanding the real science of how prayer, our efforts and fate came together to determine our destiny in this life and the hereafter.