Alma 19

With the preaching of the sons of Mosiah and the conversion of some of the people of Lamoni, Mormon inserts some thoughts and principles. First, as the Lamoni, his wife, and his servants began to administer to the people -

"...they did all declare unto the people the selfsame thing—that their hearts had been changed; that they had no more desire to do evil." (Book of Mormon | Alma 19:33)

It seems that after one recieves a testimony by the Holy Spirit and then experiences the power of redemption, being cleansed by the Holy Ghost, conversion takes place where their heart or desires change for good. In my mind, conversion is when ones heart is changed and we desire not to sin anymore.

The second thought or principle taught is again that life is not fair and conditions of suffering and affliction are not necessarily related or based upon righteousness for Ammon seemed to experience great success, but we read of his brethren -

"...behold they were naked, and their skins were worn exceedingly because of being bound with strong cords. And they also had suffered hunger, thirst, and all kinds of afflictions; nevertheless they were patient in all their sufferings.
30 And, as it happened, it was their lot to have fallen into the hands of a more hardened and a more stiffnecked people; therefore they would not hearken unto their words, and they had cast them out, and had smitten them, and had driven them from house to house, and from place to place, even until they had arrived in the land of Middoni; and there they were taken and cast into prison, and bound with strong cords, and kept in prison for many days..." (Book of Mormon | Alma 20:29 - 30)

It seems the blessings of righteousness is more the blessing of being able to bear suffering and affliction knowing that the Savior -

"...shall go forth, suffering pains and afflictions and temptations of every kind; and this that the word might be fulfilled which saith he will take upon him the pains and the sicknesses of his people." (Book of Mormon | Alma 7:11)

Therefore -

"...he will take upon him their infirmities, that his bowels may be filled with mercy, according to the flesh, that he may know according to the flesh how to succor his people according to their infirmities." (Book of Mormon | Alma 7:12)