Question : When I reach the thoughtless stage in my sadhana I enjoy a certain pleasure, but sometimes I also experience a vague fear which I cannot properly describe.
Ramana Maharshi : You may experience anything, but you should never rest content with that. Whether you feel pleasure or fear, ask yourself who feels the pleasure or the fear and so carry on the sadhana until pleasure and fear are both transcended, till all duality ceases and till the reality alone remains.
There is nothing wrong in such things happening or being experienced, but you must never stop at that. For instance, you must never rest content with the pleasure of laya (temporary abeyance of the mind) experienced when thought is quelled, you must press on until all duality ceases.