Umwelt: the word
umwelt comes from the theories of a German biologist named Jakob von Uexkull (1864-1944), and it refers to every organism's tendency only to perceive that which is meaningful to it. Uexkull uses a wildflower as his example. He explains that an ant that climbs the flower to reach the petals sees the flower as a kind of ladder. A little girl that plucks the flower to put into her hair sees it as a decoration. A cow that eats the flower sees it as food, little different from the other grasses and plants around it. A bee sees the flower bud as a source of pollen, etc, etc. The major point being that neither the cow or the girl or the ant will see the flower in the same way
nor will they consider the perspective of the other organisms.
Psychologists apply the idea of
umwelt to humans and our approach to the world around us. In other words, we all carry biases inherent to our biology, our upbringing, and our identity. That tendency toward
umwelt should remind us to be careful trusting the objectivity of our own opinions and assuming that we don't all wear some kind of metaphorical blinders.