An interesting question may arise when studying Vedanta: is Advaita only a mental process? I tried to analyse the question and give some references from Ramana Maharshi and Ashtavakra Gita, post is inspired by Swami Sarvapriyananda and his talks.
I made a small post that should give a clear overview of this question that many people may actually have.
You can find it here:
Hope you will enjoy!