The Interior Castle

Still in the Sixth Mansions, Teresa tackles one of the most dangerous aspects of spiritual life: how do you know when that voice in your head is actually divine guidance versus your own imagination, mental illness, or worse? She's brutally practical here, acknowledging that people with vivid imaginations or depression often mistake their own thoughts for God's voice. Her advice? Don't immediately trust these experiences, even if they feel profound. Instead, she offers three concrete tests: First, genuine divine communication carries immediate power - it instantly calms anxiety, removes fear, or provides peace in ways that feel impossible to manufacture. Second, it leaves lasting effects, creating deep tranquility and a desire to praise rather than self-congratulation. Third, the words stick in memory with crystal clarity, often proving prophetic in ways that unfold over time. Teresa warns against the ego trap - if these experiences make you feel special or chosen, they're probably fake. Real divine communication increases humility, not pride. She also insists on consulting spiritual directors before acting on any supposed revelation, especially if it involves other people or major decisions. This isn't about lacking faith; it's about wisdom. Even authentic spiritual experiences need external verification because the human capacity for self-deception runs deep. Teresa's message is both encouraging and cautioning: spiritual communication happens, but discernment requires both inner testing and outer counsel.