Lets put this in the context of a friend in the hospital. The hospital says family only. Now lets say youve been shacked up with your boyfriend/girlfriend for five years, and you want to visit this "loved one" and be with them in their time of need.
Guess what, you have no claim. You don't share the name, you arent tied to this person legaly in any way, so as far as your visiting right go etc... you can piss off.
Same goes for when you enter heaven:
D&C 132:
2 Behold, and lo, I am the Lord thy God, and will answer thee as touching this matter.
3 Therefore, prepare thy heart to receive and obey the instructions which I am about to give unto you; for all those who have this law revealed unto them must obey the same.
4 For behold, I reveal unto you a new and an everlasting covenant; and if ye abide not that covenant, then are ye damned; for no one can reject this covenant and be permitted to enter into my glory.
5 For all who will have a blessing at my hands shall abide the law which was appointed for that blessing, and the conditions thereof, as were instituted from before the foundation of the world.
6 And as pertaining to the new and everlasting covenant, it was instituted for the fulness of my glory; and he that receiveth a fulness thereof must and shall abide the law, or he shall be damned, saith the Lord God.
7 And verily I say unto you, that the conditions of this law are these: All covenants, contracts, bonds, obligations, oaths, vows, performances, connections, associations, or expectations, that are not made and entered into and sealed by the Holy Spirit of promise, of him who is anointed, both as well for time and for all eternity, and that too most holy, by revelation and commandment through the medium of mine anointed, whom I have appointed on the earth to hold this power (and I have appointed unto my servant Joseph to hold this power in the last days, and there is never but one on the earth at a time on whom this power and the keys of this priesthood are conferred), are of no efficacy, virtue, or force in and after the resurrection from the dead; for all contracts that are not made unto this end have an end when men are dead.
8 Behold, mine house is a house of order, saith the Lord God, and not a house of confusion.
9 Will I accept of an offering, saith the Lord, that is not made in my name?
10 Or will I receive at your hands that which I have not appointed?
11 And will I appoint unto you, saith the Lord, except it be by law, even as I and my Father ordained unto you, before the world was?
12 I am the Lord thy God; and I give unto you this commandment—that no man shall acome unto the Father but by me or by my word, which is my law, saith the Lord.
13 And everything that is in the world, whether it be ordained of men, by thrones, or principalities, or powers, or things of name, whatsoever they may be, that are not by me or by my word, saith the Lord, shall be thrown down, and shall not remain after men are dead, neither in nor after the resurrection, saith the Lord your God.
14 For whatsoever things remain are by me; and whatsoever things are not by me shall be shaken and destroyed.
We can easily forgive a child who is afraid of the dark; the real tragedy of life is when men are afraid of the light. - Plato