Simplify the following text for a Grade 0 native English-speaking person.
Original: The self is a complex and core subject in many forms of spirituality . Two types of self are commonly considered - the self that is the ego , also called the learned , superficial self of mind and body , an egoic creation , and the Self which is sometimes called the `` True Self '' , the `` Observing Self '' , or the `` Witness '' .
Simplified: To you , self is you .