Chapter 3 refuses to leave the spirit world in the future tense. It presents spiritual reality as a dimension already pressing upon embodied life and therefore as something the life of faith must learn to perceive now.
The chapter’s practical center is not spectacle but receptivity. Prayer, humility, and inward sensitivity matter because they make a person responsive to what God is already feeling and doing.
Its strongest metaphor is tuning. The spiritual life is described as learning how the gate of one’s own mind can be aligned with heaven so that experience becomes participation rather than projection.