God’s Word discloses two groups of people known as the Pharisees (those who believe in everlasting life) and the Sadducees (those who believe that life ends with the death of the flesh). First, we direct your attention to the group we refer to as “Believers”, those who believe in Heaven and Hell. You know where Heaven and Hell are located. Heaven is where God is and Hell is the place where He’s absent, and this makes it easy for you to decide where you want to be.
Examine John 6:32-33 KJV where Christ states this truth:
 “Then Jesus said unto them, Verily, verily, I say unto you, Moses gave you not that bread from heaven; but my Father giveth you the true bread from heaven.
 For the bread of God is he which cometh down from heaven, and giveth life unto the world.”
Christ adds clarity to this point in John 3:13 KJV which reads:
“And no man hath ascended up to heaven, but he that came down from heaven, even the Son of man which is in heaven.”
Heaven is a real place and you can allow your imagination to visualize those who do pass and the ones who don’t pass God’s test on judgment day. God’s Word assures you of one fact: If your goal is to make sure you do enough to get to Heaven and nothing else, you won’t make it; you won’t even come close. The “Eternity” with God will not include selfish people as the gates to Hell are wide enough and accept them all. Simply put, to make it to Heaven, you have to be unselfish and have a desire to help others join you there. Your imagination further reveals that Heaven is a place that’s full of unselfish people.
Paul adds clarity in Hebrews 10:34 KJV which reads:
“For ye had compassion of me in my bonds, and took joyfully the spoiling of your goods, knowing in yourselves that ye have in heaven a better and an enduring substance.”
Unselfishness is “Works” that you proudly possess on judgment day and God takes note of them, as they’re the only thing you can take with you into the eternity.
Yes, God does allow you to take these “Works” forward with you as stated in Rev. 14:13 KJV which reads:
And I heard a voice from heaven saying unto me, Write, Blessed are the dead which die in the Lord from henceforth: Yea, saith the Spirit, that they may rest from their labours; and their works do follow them.
You can learn how to avoid the pitfalls of selfishness by examining Webster’s Third Edition definition:
1. a: concerned excessively or exclusively with oneself: seeking or concentrating