Objective reality
What does it mean to say that reality is objective ?
The three axioms of Objectivism are : existence, consciousness, identity. Identity is associated with existence because they both treat the same phenomena (i.e. that something exists). The concept of existence includes identity.
The two basic concepts are therefore existence and consciousness. The relationship that we attribute them is at the base of our view of reality. Whenever we attribute primacy to existence or consciousness shapes how we view epistemology and thus everything else.
The basic datum behind the concept of "objective reality" is the primacy of existence over consciousness. This is, that consciousness exists and is therefore subject to existence, and thus identity.
The definition of consciousness is : "Consciousness is the faculty of perceiving that which exists". Consciousness, like any other entity, exists, or it would not be able to perceive.
If consciousness exists, then it has to be subject to identity : otherwise it would be nothing in particular, which is the same as non-existence.
This is what is meant by "primacy of existence" over consciousness. Consciousness exists, thus consciousness has to reside in the realm of existence, and not the contrary.
The opposing view is the primacy of consciousness : consciousness creates existence. This means that the mind creates matter, that the person has power over existence.
Existence resides in the realm of consciousness, and is molded by it.
Consciousness cannot therefore exist, since it is beyond existence. This leads to the view that the mind is not material, but in a state of non-existence (like the immaterial souls or the undetermined mind).
To what kind of vision of epistemology do both these beliefs lead ?
Objective reality, which is based on the primacy of existence, leads to the search of truth and existence with the use of perception and reality. This is examining the exterior world as reality and guide to reality.
A concrete representation of this viewpoint is science, where the notions of hypothesis, experimentation and rejection of hypothesis if necessary, are acknowledgment of an objective reality that must be explored with our senses.
The ethical consequence of objective reality is objective ethics, which means that ethics are derived from reality and can be understood.
Subjective reality, which is based on the primacy of consciousness, leads to the search of truth by revelation, opinion, divine guidance. It is simply examining our internal mechanisms as reality and guide to reality.
There are two major sides to subjectivism which are intrinsicism and Subjectivism. Intrinsicism basically says that our knowledge must come from authority, and duty. Subjectivism asserts that knowledge is a matter of personal preference. Basically they are both subjectivist ideas, but placing the burden of omniscient thought in either authority, or each of us.
A concrete representation of this viewpoint is religion, where the notion of faith and revelation, show the need to look inside one's emotions and opinions for truth about reality.
Religion offers a temporary solution for a species whose awareness exceeds their understanding, but does not have any positive cognitive value.
The ethical consequence of subjective reality is subjective ethics, which means that ethics cannot be derived from reality. This leads either to emotionalism or religious doctrine. The most important philosopher of this position is Kant.
Since everything else is derived from epistemology, the two beliefs lead to an opposite hierarchy of knowledge and values.
To resume : Objectivism = we are aware of reality with perception. Subjectivism = we are aware of reality with internal processes.
http://www.objectivethought.com/objectivism/reality.html
Maibe you can grasp this one