With diverse thoughts and fearing in my heart and reflecting on the strength or weakness of the incantation as also of the efficacy of the Brahmana's boon.
चिन्तयन्ती बहुविधं हृदयेन विदूयता। बलाबलं च मन्त्राणां ब्राह्मणस्य च वाग्बलम्॥