Problems concerning the "mind" are now commonly discussued in various fields. The "mind" is an important factor in the issues of informed consent and terminal care and has always been one of the main themes in philosophy. Trials to scientifically clarify the relation between the mind and the brain have recently been initiated. This paper first states that it is necessary for us to employ a new philosophical concept in evaluating the results of brain research in molecular physiology, because the terms and systems used in this area are too old and inadeqete. Secondly, it is shown that there is a possibility to use some old philosophy approaches such as Augustinian philosophy in thinking of the present mind problem, if the re translation of the terms could be suitably made and the structure of his idea could be clearly understood. Lastly, applicatlon of the analysis by Angustine was made in practice to analyze the mind connections of medical staff, patients, and their families, and it shows that the understanding of the mind structure by Augustine is effective even in the modern medical field. This paper deals only with basic principles, but the author believes that the time has come to try to combine three areas, that is, the scientific research of the brain, the problem of the mind in philosophy, and actual mind problems in the medical fields.
