From the Rosicrucian Order's The Sanctuary of Self: on Mastership, Perfection, and Spirituality, Part 2 of 2

Chapter XXII SPIRITUALITY “A state of spirituality denotes conduct indicative of man’s spiritual nature. To live a spiritual life, then, is to be governed by aspirations, urges, and inclinations originating in the Divine self, and as expressed by the dictates of conscience. It is also the use of these higher powers and faculties of which man is aware. There are, therefore, certain noble virtues which are characterized as being spiritually endowed. Such virtues, if not practiced by all men, are at least known to them. A few of these are truth, justice, modesty, and mercy. These, of course, can be applied to daily life, its labors and its habits. If we accept the viewpoint that the noble virtues are the quintessence of spirituality – as well as that observance of such commandments as the various sacred works and the different religions expound – then a man who is discerned as displaying them is spiritual.”