"But, most strange to say, many who boast of being Christians, instead of thus longing for death, are so afraid of it that they tremble at the very mention of it as a thing ominous and dreadful. We cannot wonder, indeed, that our natural feelings should be somewhat shocked at the mention of our dissolution. But it is altogether intolerable that the light of piety should not be so powerful in a Christian breast as with greater consolation to overcome and suppress that fear. For if we reflect that this our tabernacle, unstable, defective, corruptible, fading, pining, and putrid, is dissolved, in order that it may forthwith be renewed in sure, perfect, incorruptible, in fine, in heavenly glory, will not faith compel us eagerly to desire what nature dreads? If we reflect that by death we are recalled from exile to inhabit our native country, a heavenly country, shall this give us no comfort? But everything longs for permanent existence. I admit this, and therefore contend that we ought to look to future immortality, where we may obtain that fixed condition which nowhere appears on the earth. For Paul admirably enjoins believers to hasten cheerfully to death, not because they a would be unclothed, but clothed upon,' (2Co 5: 2). Shall the lower animals, and inanimate creatures themselves even wood and stone, as conscious of their present vanity, long for the final resurrection, that they may with the sons of God be delivered from vanity, (Rom 8: 19); and shall we, endued with the light of intellect, and more than intellect, enlightened by the Spirit of God, when our essence is in question, rise no higher than the corruption of this earth? But it is not my purpose, nor is this the place, to plead against this great perverseness. At the outset, I declared that I had no wish to engage in a diffuse discussion of common-places. My advice to those whose minds are thus timid is to read the short treatise of Cyprian De Mortalitate, unless it be more accordant with their deserts to send them to the philosophers, that by inspecting what they say on the contempt of death, they may begin to blush. This, however let us hold as fixed, that no man has made much progress in the school of Christ who does not look forward with joy to the day of death and final resurrection, (2Ti 4: 18; Tit 2: 13): for Paul distinguishes all believers by this mark; and the usual course of Scripture is to direct us thither whenever it would furnish us with an argument for substantial joy. 'Look up,' says our Lord, 'and lift up your heads: for your redemption draweth nigh,' (Luk 21: 28). Is it reasonable, I ask, that what he intended to have a powerful effect in stirring us up to alacrity and exultation should produce nothing but sadness and consternation? If it is so, why do we still glory in him as our Master? Therefore, let us come to a sounder mind, and how repugnant so ever the blind and stupid longing of the flesh may be, let us doubt not to desire the advent of the Lord not in wish only, but with earnest sighs, as the most propitious of all events. He will come as a Redeemer to deliver us from an immense abyss of evil and misery, and lead us to the blessed inheritance of his life and glory" (John Calvin, Institutes 3.9.5, emphasis mine).
Is it any wonder then that the Christian life is replete with suffering and pain, for these things that trouble us are there in order that we may be weaned off from the allurements of the world, thereby gaining a disgust for them and a deeper longing for the heavenly blessings that God has prepared for those who love Him, which "no eye has seen, nor ear heard, nor the heart of man imagined" (1 Cor. 2:9), so that we may be prepared for graduation day.
"I have said these things to you, that in me you may have peace. In the world you will have tribulation. But take heart; I have overcome the world" (John 16:33).