In order to understand what we believe it takes to get into heaven, one must first understand what our belief is concerning heaven. We believe that there are three degrees of glory, levels, if you will, of heaven. The Telestial is the lowest, the Terrestrial is the second, and the Celestial is the highest. And then there is outer darkness which isn't a degree of glory at all.
It is not difficult to enter into the telestial kingdom. ANd it is reserved for those murderers, whoremongers, and those who know and love a lie. In the end, all sin will be forgiven except for blaspheming the Holy Ghost, but they do not warrant a better reward than this. In this kingdom, you will behold the glory of the spirit, but not the father or son.
The Terrestrial Kingdom is for Latter-Day Saints who have a testimony, but were only lukewarm in their conviction. They were basically good, but didn't live to the best of their ability. This is also for good people that do not belong the the church. Here you will behold the glory of the Son, but not the Father.
The Celestial Kingdom is reserved for those Latter Day Saints who were faithful to the end, kept the commandments, obeyed and followed every covenant. You will forever live with your family and you will behold the glory of both the Father and the Son.
Outer Darkness if reserved for Satan and his angels. Also, anyone who has a perfect knowledge of the truth and have partaken of the power of the Holy Ghost, but still rebel and put Christ to an open shame will go here. Fortunately, very few souls will end up here.