Perfect happiness would be knowing that all my family and friends were happy and safe. Then I'd go to a tropical island with my husband where it was gorgeous and fun all day long and interesting and fun all evening. Good food and dancing would be nice, too, and weekly visits from those safe and happy family and friends. Plus world peace.
Marriage and family are ordained of God. The family is the most important social unit in time and in eternity. Under God's great plan of happiness, families can be sealed in temples and be prepared to return to dwell in His holy presence forever. That is eternal life!
I think essentially the meaning of life is probably the journey and not really any one thing or an outcome or a result. I think it's kinda the process and I think that if you can find happiness in the process then maybe that's it.