With poetry and rhetoric you may be able to read the words but you may not understand the "real" meaning. For example, take, again, the shadow. If you know a shadow is something "real" then you are beyond the state of imagination which implies that a person is "unaware of observation and amounts to illusion and ignorance". Belief is the next stage of developing knowledge. Plato goes with the idea that seeing really is not always believing we have a strong conviction for what we see but not with absolute certainty. This stage is more advanced than imagining because it's based more firmly on reality. But just because we can actually see the object and not just it's shadow doesn't mean we know all there is to know about the object. In the next stage, Thinking, we leave the "visible world" and move into the "intelligible world" which, Plato claims, is seen mostly in scientists. It stands for the power of the mind to take properties from a visible object and applying them. Thinking is the "visible" object but also the hypotheses, "A truth which is taken as self-evident but which depends upon some higher truth". Plato wants us to see all things as they really are so we can see that all is inter-connected. But thinking still doesn't give us all the information we crave and we still ask "why?" For Plato the last stage of developing knowledge, Perfect Intelligence, represents "the mind as it completely releases from sensible objects" and is directly related to his doctrine of Forms. In this stage, hypotheses is no longer present because of its limitations. Plato summarized the Divided Line with "now you may take, a corresponding to the four sections, these four states of mind, intelligence for the highest, thinking for the second, belief for the third and for the last imagining. These you may arrange in terms as the terms in a proportion, assigning to each a degree of clearness and certainty corresponding to the measure in which their object pose a reality".