Oh Kay I am so sorry. It is the most painful thing to lose a loved one. I will say a prayer for your grandma who is so happy right now like you said, but I will also say one for you.
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"If you have men who will exclude any of God’s creatures from the shelter of compassion and pity, you will have men who will deal likewise with their fellow men." — St. Francis of Assisi, 1181-1226