And now, my beloved brethren, I would that ye should come unto Christ, who is the Holy One of Israel, and partake of his salvation, and the power of his redemption. Yea, come unto him, and offer your whole souls as an offering unto him, and continue in fasting and praying, and endure to the end; and as the Lord liveth ye will be saved.
It appears to me that salvation is obtained through our coming unto Christ and giving up our whole soul as an offering to him. We demonstrate that we have given our will and heart to him by our willingness to give up food in search of his will (fasting) and pondering on what he would have us do (praying).
Through doing this we will feel peace and know what will must do. Indeed it is the power of his redemption.