I found this meditation to help us this last day before Trinity.
Cathechetical Lecture VI (excerpt)
By St. Cyril of Jerusalem (b. ca. 315)
If any man attempt to speak of God, let him first describe the bounds of the earth. Thou dwellest on the earth, and the limit of this earth which is thy dwelling thou knowest not: how then shalt thou be able to form a worthy thought of its Creator? Thou beholdest the stars, but their Maker thou beholdest not: count these which are visible, and then describe Him who is invisible, Who telleth the number of the stars, and calleth them all by their names.
Violent rains lately came pouring down upon us, and nearly destroyed us: number the drops in this city alone: nay, I say not in the city, but number the drops on thine own house for one single hour, if thou canst: but thou canst not. Learn then thine own weakness; learn from this instance the mightiness of God: for He hath numbered the drops of rain, which have been poured down on all the earth, not only now but in all time. The sun is a work of God, which, great though it be, is but a spot in comparison with the whole heaven; first gaze stedfastly upon the sun, and then curiously scan the Lord of the sun. Seek not the things that are too deep for thee, neither search out the things that are above thy strength: what is commanded thee, think thereupon.
But some one will say, If the Divine substance is incomprehensible, why then dost thou discourse of these things? So then, because I cannot drink up all the river, am I not even to take in moderation what is expedient for me? Because with eyes so constituted as mine I cannot take in all the sun, am I not even to look upon him enough to satisfy my wants? Or again, because I have entered into a great garden, and cannot eat all the supply of fruits, wouldst thou have me go away altogether hungry?
I praise and glorify Him that made us; for it is a divine command which saith, Let every breath praise the Lord. I am attempting now to glorify the Lord, but not to describe Him, knowing nevertheless that I shall fall short of glorifying Him worthily, yet deeming it a work of piety even to attempt it at all. For the Lord Jesus encourageth my weakness, by saying, No man hath seen God at any time.