大佛頂如來放光悉怛多般怛羅大神力都攝一切呪王陀羅尼經大威德最勝金輪三昧呪品 1.101

1.101

「復次若山谷中林中空閑處，燒香散花誦呪，一切諸佛、菩薩、天龍鬼神悉來現身，為說妙法，乃至授與神仙之藥。

Furthermore, if in mountain valleys, within forests, or in secluded places, one burns incense, scatters flowers, and recites the mantra, all buddhas, bodhisattvas, devas, nāgas, ghosts, and spirits will manifest their bodies, expound the wondrous Dharma for one, and even bestow the medicine of the immortals.