Salvation is an individual operation (Brigham Young)
Now, brethren and sisters, what hinders you from enjoying all you anticipated [when you prepared to accept the Gospel and join the Church]? The calm reflections of your own minds, and the conclusions of a well balanced judgment, enlightened by the Spirit of the Lord, will give you a correct answer to this question. I can answer it for myself, and perhaps for many of you. If I do not enjoy all I anticipated, if my happiness is not as complete as I anticipated, if the light of the Holy Spirit is not in my heart to that degree which I expected it would be, if I have not obtained all I anticipated when I was down in yonder world, mingled with the wicked, the cause is in myself, in my own heart, in my own disposition, in the weakness of human nature; it is my own will that prevents me from enjoying all I anticipated, and more. It is a mistaken idea to suppose that others can prevent me from enjoying the light of God in my soul; all hell cannot hinder me from enjoying Zion in my own heart, if my individual will yields obedience to the requirements and mandates of my heavenly Master. He has set me a pattern to copy, which, if I imitate faithfully, will yield to me all and more of heaven in my own heart than I can anticipate. This is my answer.