Internalism and Externalism are two major theories in contemporary epistemology that seek to explain the nature of epistemic justification and the conditions under which a belief qualifies as knowledge. The central point of disagreement between them concerns whether the factors that justify a person's belief must be internally accessible to the believer or may depend on external conditions beyond the believer's awareness. Internalism maintains that the justification of a belief depends entirely on factors that are cognitively accessible to the subject. According to internalists, a person is justified in holding a belief only if they can, upon reflection, access the reasons, evidence, or experiences that support that belief. Justification is therefore closely related to conscious awareness and reflective reasoning. If an individual cannot identify or become aware of the grounds for a belief, then that belief lacks proper epistemic justification.