Many times when someone is mean to you and harms you and you love them and pray for them it works. Maybe always but sometimes it just take long time and you may never know it.
I wish all people could live in peace together and love God and all others and take good care of nature and animals. I believe that when you love God then that is what you want in your heart.
What if one reason for suffering is for all believers to unite and pray together loving each other and glorify and love God and Jesus. With lot of people together it is easier to make good changes in this world in God's name. Then others will want to join too.
It also makes people rely in God and make you want to help others more after experiencing their pain.
If God answers my prayer now then I will surely tell others of God's goodness and love and seek to help others who suffer with new positivity that with God's help anything is possible.