deva-guhyaṁ susaṁvṛtam

na-not; etat-this; parasmai-to outsiders; akhyeyam-is to be disclosed; prstaya api-even though questioned; kathancana-by anyone; sarvam-everything; sampadyate-becomes successful; devi-O lady; deva-guhyam-very confidential even to the demigods; su-samvrtam-very carefully kept confidential.