I recollect when I stood on the summit of Etna, and darted my gaze down the crater; the immediate vicinity was discernible, till, lower down, obscurity gradually terminated in total darkness. Such figures exemplify many truths revealed in the Bible. We pursue them, until, from the imperfection of our faculties, we are lost in impenetrable night. All truths, however, that are essential to faith, _honestly_ interpreted; all that are important to human conduct, under every diversity of circumstance, are manifest as a blazing star. The promises also of felicity to the righteous in the future world, though the precise nature of that felicity may not be defined, are illustrated by every image that can swell the imagination; while the misery of the _lost_, in its unutterable intensity, though the language that describes it is all necessarily figurative, is there exhibited as resulting chiefly, if not wholly, from the withdrawment of the _light of God's countenance_, and a banishment from his _presence_! best comprehended in this world by reflecting on the desolations, which would instantly follow the loss of the sun's vivifying and universally diffused _warmth_. You, or rather _all_, should remember that some truths from their nature, surpass the scope of man's limited powers, and stand as the criteria of _faith_, determining by their rejection, or admission, who among the sons of men can confide in the veracity of heaven. Those more ethereal truths, of which the Trinity is conspicuously the chief, without being circumstantially explained, may be faintly illustrated by material objects. The eye of man cannot discern the satellites of Jupiter, nor become sensible of the multitudinous stars, whose rays have never reached our planet, and consequently garnish not the canopy of night; yet are they the less _real_, because their existence lies beyond man's unassisted gaze? The tube of the philosopher, and the _celestial telescope_,--the unclouded visions of heaven will confirm the one class of truths, and irradiate the other. The _Trinity_ is a subject on which analogical reasoning may advantageously be admitted, as furnishing, at least, a glimpse of light, and with this, for the present, we must be satisfied. Infinite Wisdom deemed clearer manifestations inexpedient; and is man to dictate to his Maker? I may further remark, that where we cannot behold a desirable object distinctly, we must take the best view we can; and I think you, and every candid enquiring mind, may derive assistance from such reflections as the following.