Final answer:
The experience-centered approach does not fully argue that all spiritual beliefs are experience-based, but suggests many are derived from personal experiences. Skepticism towards religious experiences and their validity as evidence for a supernatural reality remains due to their subjective nature.
Step-by-step explanation:
The experience-centered approach to spirituality suggests that spiritual beliefs are often derived from personal experiences. However, it does not necessarily argue that all spiritual beliefs are based solely on experience. Deep ecologists, for instance, talk about 'deep experience' as having a semi-religious nature, implying that spirituality might not be strictly tied to empirical evidence.
When considering religious experiences, there are indeed serious challenges. People often question the veracity of these experiences based on alternative, naturalistic explanations. These skepticisms arise particularly for those who have not had any religious experiences themselves, making it difficult for them to accept the assertion that a religious experience is a reliable indicator of a supernatural reality.
In conclusion, while religious experiences can be profoundly influential to those who have them, the broader acceptance of them as proof of a deity or supernatural realm is contentious. The subjectivity of such experiences means that while they may affirm the belief of the individual who has them, they do not offer definitive proof of a belief in the supernatural that can be universally accepted. Instead, these experiences often raise more questions than they answer regarding the nature of spiritual reality.