Q - How can I know I am saved and ready for the Rapture?

A - If you are a true Christian then you are ready.

If you have given your heart and life to Jesus Christ and you believe he is the son of God and you believe he lived, died on the cross for your sins and rose from the dead you are saved.

If you keep his commandments and watch, wait and pray for his return and you truly want him to return so that you can be with him then you are ready for the Rapture. (See overcomer)

If you are so caught up with your earthly life that you almost never think of the Rapture and you don't watch and pray for his return then you are NOT ready for the rapture and you are at risk of being let behind.

James 1:22.
But prove yourself doers of the word, and not merely hearers who delude themselves.

He that hath my commandments, and keepeth them, he it is that loveth me. . .and I will love him, and will manifest myself to him. John 14:21

The final test of love is obedience, not sweet emotions, not willingness to sacrifice, not zeal, but obedience to the commandments of Christ!

Our Lord drew a line plain and tight for everyone to see. On one side He placed those who keep His commandments and said, "These love Me." On the other side He put those who keep not His sayings, and said, "These love Me not."

The commandments of Christ occupy in the New Testament a place of importance that they do not have in current evangelical thought. The idea that our relation to Christ is revealed by our attitude to His commandments is now considered legalistic by many influential Bible teachers, and the plain words of our Lord are rejected outright or interpreted in a manner to make them conform to religious theories ostensibly based upon the epistles of Paul.

The Christian cannot be certain of the reality and depth of his or her love until he or she comes face to face with the commandments of Christ and is forced to decide what to do about them. Then he or she will know how much they love Jesus because Jesus said "If ye love me, keep my commandments." John 14:15 - If we love Jesus we must keep his commandments if we do not love him why would he take us to Heaven to live with him forever? Think about it!

I think we should turn for a while from finespun theological speculations about grace and faith and humbly read the New Testament with a mind to obey what we see there.

Love for Christ is a love of willing, as well as a love of feeling, and it is psychologically impossible to love Him adequately unless we will to obey His words!

So if you want to know you are ready for the Rapture then learn his commandments and keep them and you will be ready!

Mark 13:35-37
Watch ye therefore: for ye know not when the master of the house cometh, at even, or at midnight, or at the cockcrowing, or in the morning: Lest coming suddenly he find you sleeping. And what I say unto you I say unto all, Watch.

When it says he will "find you sleeping" this is not talking about sleeping in your bed it is referring to sleeping in your faith so in other words he will find you lukewarm or backslidden and he will not be pleased with you.