The knowing method of deciding whether something is true or not is often described as having some special feeling inside. This becomes more trustworthy as we do strong purification practices to gain clarity, then when we feel inside that is true, the inner mind resonates in a special way. However, ordinary unprepared inner mind basis for resonation often comes from earlier happy or unhappy experiences. As we learn from those experiences, we use them to build a non-verbal inner structure in order to establish the reality and validity of subsequent experiences. This is very normal thinking and careful thinking in everyday life. However, there are other factors influencing us in establishing criteria for deeper inner authentic life, the nature of reality. These are the very things we wish to establish beyond any doubt and wish to know intimately. Then, criteria of feeling inside or resonating in a less clear state of being might not be the most careful criteria for establishing tru