Why did the person who named it call it a "dead end street?" There's no place to go when you get there, but for a Christian there is. When you're "absent from the body . . . [you're] at home with the Lord" (2Co 5:8). This would be in heaven. But is it right to be visualizing this with your imagination just using your mind? Consequently it takes faith to comprehend. We rely on the Holy Spirit who "testifies with our spirit that we are the children of God" (Ro 8:16). We have "strong encouragement" (Heb 6:18) and "an anchor of the soul, a hope both sure and steadfast" (:19). We "take hold of the hope set before us" (:18) "which is Christ in you, the hope of glory" (Col 1:27). "Everyone who has this hope fixed on Him purifies himself, just as He is pure" (1Jn 3:3).
"God created the heavens and the earth" (Ge 1:1). There is no second-class status with the earth because God is "in heaven above and on the earth below" (Dt 4:39) and "everything that is in the heavens and the earth [is Yours]" (1Ch 29:11). Heaven is not out of touch. Man must "seek first His kingdom [of heaven]" (Mt 6:33) and pray "Your kingdom come . . . on earth as it is in heaven" (:10). You might say that there is even a third dimension. There are "those who are in heaven and on earth, and under the earth" (Php 2:10). There are creatures "in heaven and on the earth and under the earth" (Rev 5:13). Therefore "set your mind on the things above" (Col 3:2).
Jesus will give you "the keys of the kingdom of heaven" (Mt 16:19) and then "an inheritance . . . in heaven for you" (1Pe 1:4). But there must be forward progress and not just a biding of time. Hope and expectation are synonymous. You gather with others "as you see the day drawing near" (Heb 10:25) which is a "full day" (Pr 4:18). There is "a salvation ready to be revealed in the last time" (1Pe 1:5). "Knowing the time . . . salvation is nearer to us than when we believed" (Ro 13:11). Christ will "appear a second time for salvation without reference to sin, to those who eagerly await Him" (Heb 9:28). Therefore "hold fast . . . [because] He who promised is faithful" (10:23).