Other things, hindrances equally of the soul, may have accompanied you as far as the prison gate, to which also your relatives may have attended you. There and thenceforth you were severed from the world; how much more from the ordinary course of worldly life and all its affairs! Nor let this separation from the world alarm you; for if we reflect that the world is more really the prison, we shall see that you have gone out of a prison rather than into one. The world has the greater darkness, blinding men's hearts.
The world imposes the more grievous fetters, binding men's very souls. The world breathes out the worst impurities— human lusts. The world contains the larger number of criminals, even the whole human race. Then, last of all, it awaits the judgment, not of the proconsul, but of God. Wherefore, O blessed, you may regard yourselves as having been translated from a prison to, we may say, a place of safety. It is full of darkness, but you yourselves are light; it has bonds, but God has made you free.
Unpleasant exhalations are there, but you are an odour of sweetness. The judge is daily looked for, but you shall judge the judges themselves. Sadness may be there for him who sighs for the world's enjoyments. The Christian outside the prison has renounced the world, but in the prison he has renounced a prison too. It is of no consequence where you are in the world— you who are not of it. And if you have lost some of life's sweets, it is the way of business to suffer present loss, that after gains may be the larger.
Thus far I say nothing of the rewards to which God invites the martyrs. Meanwhile let us compare the life of the world and of the prison, and see if the spirit does not gain more in the prison than the flesh loses. Nay, by the care of the Church and the love of the brethren, even the flesh does not lose there what is for its good, while the spirit obtains besides important advantages. You have no occasion to look on strange gods, you do not run against their images; you have no part in heathen holidays, even by mere bodily mingling in them; you are not annoyed by the foul fumes of idolatrous solemnities; you are not pained by the noise of the public shows, nor by the atrocity or madness or immodesty of their celebrants; your eyes do not fall on stews and brothels; you are free from causes of offense, from temptations, from unholy reminiscences; you are free now from persecution too.
The prison does the same service for the Christian which the desert did for the prophet. Our Lord Himself spent much of His time in seclusion, that He might have greater liberty to pray, that He might be quit of the world. It was in a mountain solitude, too, He showed His glory to the disciples. Let us drop the name of prison; let us call it a place of retirement. Though the body is shut in, though the flesh is confined, all things are open to the spirit. In spirit, then, roam abroad; in spirit walk about, not setting before you shady paths or long colonnades, but the way which leads to God.
As often as in spirit your footsteps are there, so often you will not be in bonds. The leg does not feel the chain when the mind is in the heavens. The mind compasses the whole man about, and whither it wills it carries him. But where your heart shall be, there shall be your treasure. Be there our heart, then, where we would have our treasure.
Source: Ad Martyras (New Advent)