Is there an inner self? By inner self I mean something not external to us but in us. We need to understand first what external reality is. It is all that can be perceived or detected by something physical, a sensory organ for example or a physical instrument.
Is there anything that cannot be perceived or detected by anything physical? Before answering that we need to examine the concept of mental reality. Just like objects are to physical reality, thoughts are to mental reality. We can distinguish two types of thoughts. One is the physical based ones which are formed from the sensory outputs. These reflect what we perceive through sense organs. The other type of thoughts are the abstract ones which are independent of the sensory output.
These are the ones that are the output of cogitation and form the ideas, discoveries and inventions. We can hypothesize that these emanate from something independent of physical world and is called as the mind in the field of spirituality.The mind helps us perceive the hidden truths and laws and the inner workings of nature. The above reasoning reasonably assures us the existence of mind.
We will explore further whether the existence of soul a deeper inner self is necessary to explain nature and its workings.