I can barely comprehend how I lived and survived before, without love. Do we carry many other people with us as we live our lives in God, and love?

My granddaughter is four, and when I was visiting her recently she was jealous of me because I was taking away her mother’s attention. My daughter is now pregnant with a second child. What is the best way for her to introduce the new baby to the first child?

Also, why did I create this situation, and what do I need to learn from this?