The wicked Raksasas vitiate* fruits, roots and water along the way. You, ever not the alert, should preserve these from the Rākṣasa. *By means of poison, etc.
दूषयेयुर्दुरात्मानः पथि मूलफलोदकम्। राक्षसाः पथि रक्षेथास्तेभ्यस्त्वं नित्यमुद्यतः॥