"Because strait is the gate, and narrow is the way, which leadeth unto life, and few there be that find it." (Matthew 7: 14)
Passages like this one in the Gospels can create bondage.
The truth makes us free (John 8: 32), so any interpretation of a passage which creates fear or bondage is wrong.
Indeed, the way to Life is very narrow, because we cannot find life but through Christ Jesus:
"Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me." (John 14: 6)
Now, the Way came to us and died on the Cross:
"5Let this mind be in you, which was also in Christ Jesus: 6Who, being in the form of God, thought it not robbery to be equal with God: 7But made himself of no reputation, and took upon him the form of a servant, and was made in the likeness of men: 8And being found in fashion as a man, he humbled himself, and became obedient unto death, even the death of the cross." (Philippians 2: 5-8)
Because Jesus came to us, and He fulfilled the Law (Matthew 5: 17) and provided us His righteousness (2 Corinthians 5: 21), we are no longer looking for some pathway, but rather we are called to believe:
"Jesus answered and said unto them, This is the work of God, that ye believe on him whom he hath sent." (John 6: 29)
"And this is the will of him that sent me, that every one which seeth the Son, and believeth on him, may have everlasting life: and I will raise him up at the last day." (John 6: 40)
We are not looking for life, but rather we are called to receive Christ and with Him His Life.
So, why did Jesus talk about a strait gate and a narrow way? Remember that Jesus in the Sermon on the Mount was preaching to Israelites still under law, to His disciples who saw Jesus as a teacher, and not just the full and complete Savior of the world.
Indeed, very few people would find this pathway -- but many more have allowed the Way to find them!