सिद्धान्विद्याधरांश्चैव तिरोधानेन सो ऽसृजत् ।
तेभ्यो ऽददात्तमात्मानम् अन्तर्धानाख्यमद्भुतम् ॥ ४४ ॥
siddhan vidyadharams caiva
tebhyo 'dadat tam atmanam
siddhan-the Siddhas; vidyadharan-Vidyadharas; ca eva-and also; tirah-dhanena-by the faculty of remaining hidden from vision; sah-Lord Brahma; asrjat-created; tebhyah-to them; adadat-gave; tam atmanam-that form of his; antardhana-akhyam-known as the Antardhana; adbhutam-wonderful.
Then Lord Brahma, by his ability to be hidden from vision, created the Siddhas and Vidyadharas, and gave them that wonderful form of his known as the Antardhana.
Antardhana means that these living creatures can be perceived to be present, but they cannot be seen by vision.