While we know we have an inheritance, to take possession of it, we must be willing to endure through suffering (ver. 17). What should help us make it through the suffering is realizing that the glory that will be revealed in us later is far greater than any suffering we have to go through now (ver. 18). The glory that will be revealed in us is referring to the redemption of our bodies (ver. 23), that is, the time when the mortal body becomes immortal. Paul spoke of this in another place.

1 Corinthians 15:42-44 (ESV)
42 So is it with the resurrection of the dead. What is sown is perishable; what is raised is imperishable. 43 It is sown in dishonor; it is raised in glory. It is sown in weakness; it is raised in power. 44 It is sown a natural body; it is raised a spiritual body. If there is a natural body, there is also a spiritual body.

The spiritual body that Paul speaks of is the body that we shall have in the resurrection, that is, a body that is redeemed from all corruption and decay. While Jesus is the who of our hope, and heaven is the where of our hope, a glorified body is the what of our hope (vers24-25), and it is a part of what makes heaven so attractive to us. Would you want to spend eternity in a physical body that wears down and is sometimes overwhelmed with aches and pains? No, of course not. However, in heaven we will have a body like the one our glorified Savior now has. Listen to John:

1 John 3:2 (ESV)
2 Beloved, we are God’s children now, and what we will be has not yet appeared; but we know that when he appears, we shall be like him, because we shall see him as he is.

Meanwhile, while we may have to suffer now, we have the Holy Spirit to help us when we are weak (ver. 26), intercede for us when we pray (vers. 26-27), and to remind us that all things will work for good for those who love God and are called according to His purpose (ver. 28). Is this calling something that came about on the spur-of-the-moment? No! If you are a Christian, you are a part of the group that has been foreknown, predestined, justified and glorified (vers 29-30). You have been on the mind of God since before this world began (Ephesians 1:4; 2 Timothy 1:9). Now, all you have to do is abide in Christ, endure the hardships of life for a while, and then enjoy eternity in the presence of God in your glorified body, a body in which there will be no pain or problems, no suffering or sorrow ever again. As you wind down for the night, think on these things.