dhyayan phenam athapasyad
tam-that; daivim-ominous; giram-voice; akarnya-after hearing; maghavan-Lord Indra; su-samahitah-becoming very careful; dhyayan-meditating; phenam-appearance of foam; atha-thereafter; apasyat-he saw; upayam-the means; ubhaya-atmakam-simultaneously dry and moist.