Detachment is the opposite of concupiscence and avidity; it is the greatness of soul which, inspired by a consciousness of absolute values and thus also of the imperfection and impermanence of relative values, allows the soul to keep its inward freedom and its distance with regard to things. Consciousness of God, on the one hand annuls, in a certain fashion, both forms and qualities, and on the other confers on them a value that transcends them; detachment means that the soul is so to say impregnated with death, but it also means by compensation, that it is aware of the indestructibility of earthly beauties; for beauty cannot be destroyed, it withdraws into its archetypes and into its essence, where it is reborn, immortal, in the blessed nearness of God. [GTUFS: EsoterismPW, The Virtues in the Way]

Detachment / Attachment: It is to be observed first of all that attachment is in the very nature of man; and yet he is asked to be detached. The criterion of the legitimacy of an attachment is that its object should be worthy of love, that is, that it should communicate
to us something of God, and, even more importantly, should not separate us from Him; if a thing or creature is worthy of love and does not alienate us from God, – in which case it indirectly brings us close to its divine model – it may be said that we love it “in God” and “towards God”, and thus in keeping with Platonic “remembrance” and without idolatry and centrifugal passion. To be detached means not loving anything outside of God or a fortiori against God: it is thus to love God ex toto corde. [GTUFS: EsoterismPW, The Virtues in the Way]