No eye has seen, no ear has heard, and no mind has imagined!

(Thomas Doolittle, "Love to Christ Necessary to Escape the Curse at His Coming!" 1693)

"No eye has seen, no ear has heard, and no mind has imagined - what God has prepared for those who love Him!" 1 Corinthians 2:9

The lovers of Christ have great preparations made by God Himself, for their happiness in the eternal world.

For all the lovers of the world, and sin, and vanity - wrath and Hell are prepared!

But for the lovers of Christ, such things are prepared as transcend . . .
  the most refined mind to conceive,
  the most eloquent tongue to express,
  or the ablest pen to describe!

The eye of man has seen admirable things, coasts of pearl, golden mines, stately monuments, kingly palaces - but never has eye seen such things as God has prepared for those who love Him.

The mind of man can conceive more than the eye has seen, or the ear has heard. It can imagine . . .
  all pebbles to be pearls,
  all the earth to be a silver heap,
  the sea to be liquid gold,
  the air to be transparent crystal,
  and every candle to be a star!
And if all these were so - they would be but as . . .
  a grain of sand, compared to a mountain,
  a beam of light, compared to the sun,
  a drop, compared to the ocean,
  a grain, compared to a golden mine -
when compared with the things that are prepared for such as love God and Christ! For those things are . . .
  so great - that they cannot be measured;
  so many - that they cannot be numbered;
  so precious - that they cannot be valued;
  so durable and lasting - that they can never be ended!

They exceed our faith! They are beyond our hope - and above our desires! They might be possessed hereafter - but they cannot be comprehended here, because . . .
  for sublimity - they are incomprehensible,
  for transcendence - they are inexplicable,
  for glory - they are unutterable,
  for sweetness - they are inconceivable,
  for sureness - they are unquestionable,
  for fullness - they are immeasurable,
  for firmness - they are unmovable,
  for lastingness - they are unchangeable!