In the act of giving gifts to the poor on Purim it is noted: “Kol HaPoshet Yad Notnim Lo– Whoever stretches out their arm [asking for help] we give them” (Shulchan Aruch – Laws of Megillah 694:3). So too, prayer on Purim is considered especially auspicious because God follows this same rule and does not turn away any who “stretch out their hands” to Him.