Paul Tillich and Rudolf Otto get to the bottom of what it means to tread the Way of the Holy Mushroom in their classic works, The Courage to Be and The Idea of the Holy. When you understand the radical, existential nature of courage and faith and the radical, supernatural nature of the numinous and the holy, you understand how the ritual, sacramental use of psychedelics makes for a strong, faithful and holy people.
The courage to be Holy is the courage to despair of Babylon and to put all your trust in the power of Being-itself. Beyond the wisdom of the world and the morality of the world, beyond psychedelia and mysticism, beyond duality and non-duality, there is the immutable and infinite holiness of God, the source of all holiness.
But Jesus answered and said, Ye know not what ye ask. Are ye able to drink of the cup that I shall drink of, and to be baptized with the baptism that I am baptized with? They say unto him, We are able.