Verse 21

मायया रचितास्तेषु संकल्पेन महामते ।अहङ्कारमहायक्षाः परमालोकभीरवः

In plain words

within these, O great-minded one, by māyā, by Saṅkalpa, there have been fashioned great yakṣas of ahaṅkāra, terrified of the supreme Light.