Enter through the narrow gate. For wide is the gate and broad is the road that leads to destruction, and many enter through it.  But small is the gate and narrow the road that leads to life, and only a few find it.
(Matthew 7:13-14

I think many people think that Heaven has many doors and many ways to enter.  Good deeds, good words, good thoughts, whatever.  The truth, which comes from the authority of the Bible, is that only one door will gain entry into Heaven and that door is "manned" by Jesus Christ.  Good works and being a kind and thoughtful person is absolutely wonderful, it just isn't the way to Heaven.  Jesus Christ holds the key to open the gate and He is longing to share that key with all who will follow Him.