How has your knowledge of the Plan of Happiness changed/benefited your life?

On my mission, I taught a beautiful young lady named Jonas. She was my very favorite out of all the people we were teaching at that time. When we first started teaching Jonas, she was a little cold to us. We taught her about Joseph Smith and the Book of Mormon, but she didn't seem very interested at first. After a few discussions with her, we found out that she was very ill. She had major heart problems and wasn't expected to live much longer. We immediately felt that we should teach her the Plan of Salvation. We told Jonas we wanted to teach her this plan that would explain to her where she came from, why she's here, and where she will go after this life. Her eyes lit up when we explained this beautiful plan to her and she told us that she believed it. After that discussion, we reviewed some of our previous lessons about Joseph Smith and the Book of Mormon, and this time around, she was so interested and gained a testimony of the things we had taught her. Her countenance changed and she became a more positive, upbeat young lady. Soon after we taught her the Book of Mormon, Jonas passed away. I was so sad to see her go because she was my favorite and I loved her, but I felt so much peace in the situation. I'm grateful for this beautiful plan that our Heavenly Father created for us. It brings me so much peace and joy in this life. I know that as long as I'm obedient and faithful, I will someday return to be with Him and I can be happy for eternity.