This cross represents The presence of God and the Holy Spirit while Jesus was on the cross. Just as they were there with Jesus, you can know that in your most troubling times the Father, Son and Holy Spirit are there to assist you in your time of need.
Jesus and Mary. When a spouse passes away, there's a name for it: widow/er. When parents die, there's a name for it: orphan. When a mother loses a child, there's no name for it, in any language, because the words to capture that much pain don't exist.