In life, it is vital to take things as they are, otherwise you do not interact with the world, but with an illusion created by your own thoughts and desires and fears. An illusion world is finished, your mind made every part of it, so it holds nothing you didn't put in there, with nothing new ever being able to enter. But the real world is unfinished, and it shows its true form via the parts that exist outside your knowledge structures, therefore, the test of true contact is simple: can reality surprise you? When nothing surprises you anymore, you have stopped looking at the world, and started living in your engineered model of it.

This is made most clear with people. By nature, you see others for their actions, so to you they are only ever what they have been, and this finishes them, as they harden into a piece of your illusion world. But people as they have been are only what they have shown you so far, because people are and always will be unfinished, therefore, to take someone as they are is to love them for what they might one day become.