Four are considered as non-live :
        A poor person ,
     A Leper ,
   A blind person &
    One who is childless. 
What do these 4 have in common ?
    Tosfos says we should pray for mercy to be spared. 
   These 4 are limited in their ability to give to others. 
     Living is Giving. 
That is why the Parsha begins with childbirth & continues with laws of leprosy. May Hashem help us in all ways. 
Now may be a good time for a gem of Torah study.
www.GemsofTorah.com