Jesus Christ. When we think of him what runs through our minds? Words that run through my mind are advocate (1 John 2:1), savior (1 Nephi 13:40), mediator (1 Timothy 2:5), and redeemer (Alma 5:15). Wow, what a list! This is not all, the list of the attributes and importance of Jesus Christ is endless.
We are commanded to have these perfect attributes, "Be ye therefore perfect, even as your Father which is in heaven is perfect." (Matt. 5:48) How is this possible? How can we go back to Father? Thomas had this same question. Lets see what his answer was. "Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me." (John 14:6) So by the perfect life that Christ led, his suffering in the Garden and on the Cross, and then by his resurrection (all of this constitutes the Atonement) then we can be made clean!
So what's the catch? Well, because Christ has now become our mediator with the Father, he sets the terms of the Deal. Christ asks each of us to believe in him, or have faith (John 10:36-38), to give up our sins and to follow him, or repent (Alma 39:9), to be baptized and receive the gift of the Holy Ghost, (3 Nephi 11:33-35; 19:9-13), and finally to endure to the end, (Matt. 10:22). These are the terms that we must fill. The concept of a mediator is explained very well by the video this link goes to.
This is the doctrine of Christ. He is our Savior, and I know that we can have eternal happiness with our Father in Heaven and our families if we live what Christ has taught us!!