In the same portion of parashat haman we find the source of the 72 names and the splitting of the Read Sea. The 72 names provide for us spiritual bridges from Malchut, the world of action, to the upper levels where spiritual and material sustenance are bestowed on us.
The spelled name of YHVH that has the numerical value of 72 יוד-הי-ויו-הי relates to the world of emanationת Atzilut. It is a special and powerful Shabbat that we connect to the power that controls physicality.
Using this special reading parashat haman that some read everyday after their morning prayers, makes a powerful connection for sustenance.
On Tuesday, just before the Shabbat of Beshalach we have a special prayer called Parashat Haman that has significant power.
Parashat Haman - Simple And Convenient