Let the idleness of vain imaginations be put to flight, let go of sloth, hold fast to diligence.
Be instant in holy meditations, cleave to the good things which are of God: leaving that which is temporal, give heed to that which is eternal.
Now in this godly employment of thy mind, to what canst thou turn thy thoughts more wholesomely and profitably than to the sweet contemplations of thy Creator’s immeasurable benefits toward thee.
Consider therefore the greatness and dignity that He bestowed upon thee at the beginning of thy creation; and judge for thyself with what love and reverence He ought to be worshipped.
For when, as He was creating and ordering the whole world of things visible and invisible, He had determined to create the nature of man, He took high counsel concerning the dignity of thy condition, forasmuch as He determined to honour thee more highly than all other creatures that are in the world.
Behold therefore to what greatness thou wast created, and again consider what manner of love thou oughtest to render therefore.
Let Us make man, saith God, in Our image, after Our likeness.
If thou art not aroused by this word of thy Creator, if thou art not at so unspeakable a goodness of condescension in Him towards thee, set all on fire of love towards Him, if thy whole heart is not inflamed with longing after Him, what shall I say? Shall I count thee asleep, or rather dead?
[...] God if, considering that He is good, we study to be good; if, knowing that He is righteous, we endeavour to be righteous; if, beholding His mercy, we give ourselves to mercy.
But how can we be in His image. Hearken. God is mindful of Himself, understandeth Himself, loveth Himself.
And thou too, if thou after thy measure art mindful of God, understandest God, lovest God, then wilt thou be in His image; for thou wilt be striving to do that which God ever doth.
Man ought to make this the end of all his life, to be mindful of the Chief Good, to understand it and to love it; to this should every thought, every motion of the heart be bent, be whetted, be conformed:
that with an unwearying love thou shouldst be mindful of God, understand God, love God, and so for thy health set forth the dignity of thy creation, wherein thou wast created after the image of God.
Anselm of Canterbury (1033-1109): Meditations, 1,1.