Luke 18:8 I tell you, He will defend and protect and avenge them speedily. However, when the Son of Man comes, will He find persistence in] faith on the earth? AMPC

Jesus is asking a very important question here, one that we haven't considered when we nonchalantly say we are ready for Him to come. People every day say that they are ready, yet there is no evidence that they are. They are actually saying I am ready because it seems to be the thing to say. People copy each other because they don't know what to say on their own, and then before you know it they are all believing a lie.  

It is believed by many this move with Jesus will be effortless, with no need to prepare. That is not true and Jesus wants you to know that so you don't miss Him —by not being ready. From the Word we can find the truth and that is, that getting ready for Jesus is not effortless. No move is effortless—even in the natural. If you are going to move there is more involved then just saying I am ready. 

Matthew 11:12 And from the days of John the Baptist until the present time, the kingdom of heaven has endured violent assault, and violent men seize it by force [as a precious prize—a share in the heavenly kingdom is sought with most ardent zeal and intense exertion]. AMPC

Preparing to move in with Jesus will not only be a fight, but will take some thought and action. The thought would be the decision to go to heaven and the action is in getting ready. It will take faith to get to heaven and we know faith is a fight!  Faith is a spiritual force, the thing we need, the evidence of what we  don't see with the natural eye. Having faith will  bring that thing we can’t see to pass. With faith comes revelation knowledge and with that comes the knowing of what God is thinking.

Hebrews 11:1 Now faith is the assurance (the confirmation,  the title deed) of the things [we] hope for, being the proof of things [we] do not see and the conviction of their reality [faith perceiving as real fact what is not revealed to the senses]. AMPC

Thus, getting faith alone for the trip is essential (Romans 10:17). One of many attributes of a Christ follower is one who will get faith for what he believes.  A spiritual foundation for being ready is faith.

If you have faith for the return of Jesus then you will prepare for Him by faith, and with your faith —will come action. It won't be just saying  you're ready, but you will find out what you need to do to be ready.

James 2:17 So also faith, if it does not have works (deeds and actions of obedience to back it up), by itself is destitute of power (inoperative, dead). 18 But someone will say [to you then], You [say you] have faith, and I have [good] works. Now you show me your [alleged] faith apart from any [good] works [if you can], and I by [good] works [of obedience] will show you my faith. AMPC

Faith comes by hearing the Word of God (Romans 10:17). Get busy if you want to go to heaven—start packing up in your spirit some faith, in your mind, revelation-knowledge.  

Don't just think what everyone else thinks or you will miss Jesus. Jesus said beware of false prophets. Is what you are hearing and believing in line with what Jesus said? What did Jesus say? How would you know unless you open the Book and find out?