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Whether you join us for a class or attend our weekly Sunday Spiritualist Service for a sense of community, inspirational talks, fellowship or demonstrations of mediumship, all are welcome!


Co-founders Rev. Bill Coller and Rev. Sharon Siubis wish to welcome you to Inner Spiritual Center, located in Fairfield, NJ and around the world via zoom. Our Center was co-founded in 2012 by Rev. Sharon Siubis and Rev. Bill Coller as an inclusive facility, and open to all backgrounds, for those pursuing metaphysical and spiritual understanding and development. We are a School for Sensitivity, Intuitive and Mediumship development and training as well as providing a spiritual community through our weekly Spiritual Service and our service to others.

As we welcome some of the best metaphysical teachers in the US and around the World, we work to provide an amazing learning experience for our students through a grounded and structured format with limited class size for best results.  ISC’s yearly courses and other offerings include:

  • 1st Year Mediumship Development

  • 2nd Year & Advanced Mediumship Development

  • Exploring Trance - Introduction Course

  • Trance to Physical Mediumship Course

  • Introduction to Mediumship

  • Mediumship Demonstrations & Mini Reading Fun Fests

  • Sunday Spiritualist Services

  • Ministry Program

  • Many other one day/evening or short module classes are offered throughout the year and range from Inspired writing to Intuitive Development with many other interesting metaphysical subjects.

Our Mission Statement, “The growth of one’s own spirit and our connection to the Spiritual Realm is a lifelong adventure and a path unique to each individual,” reflects our commitment to treating each person as an individual while fostering a supportive group environment in all that we do.


ISC's mission is to provide intensive and in-depth training for the Intuitive and Mediumistic unfoldment and growth. Our goal is for each person to find and achieve their individual potential through classes and ongoing seminars. A combination of solid knowledge, integrity, dynamic teaching styles and years of experience allow the student an unprecedented foundation in their individual path of learning.

Our weekly Spiritual Service is open to all denominations as we look to provide ongoing Inspiration through a weekly talk, music, community, and connection to spirit through our Demonstration of Mediumship. Our caring Ministers are available for pastoral needs.

ISC continues to look forward in our development as we look forward to welcoming you.

All our Best,

Rev. Sharon Siubis & Rev. Bill Coller

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After two years of being out of our center, we were finally able to return and had our official grand reopening on 4/10/22. Unbeknownst to our wonderful founders, Rev. Bill & Rev. Sharon, some in our community had a little 10th Anniversary surprise for them. The center was gifted a plaque and new plants, but most importantly they were gifted with expressions of love & appreciation. We hope you enjoy the video and that it gives you a sense of what our loving community is all about! 

Inner Spiritual Center Provision/Disclaimer

Please note that in any mediumship work, there is evidence of information, but there may also be “message” information given to the client/recipient during a personal or public session. As the evidence part of mediumship communication stands on its own merit, the message is only an opinion from the communication. It is then one’s own personal responsibility as to the choice that is made based on this message information. ISC holds no responsibility for personal choice.

10th Anniversary video
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