تَجْتَافُ أَصْلًا قَالِصًا مُتَنَبِّذًا بِعُجُوبِ أَنْقَاءٍ يَمِيلُ هَيَامُهَا
She shelters in the hollow of a solitary, shrunken tree at the roots of sandhills, whose loose ridges slope and shift.
Tajtāfu suggests taking shelter within or behind something; aṣlan qāliṣan a shrunken tree trunk; mutanabbidhan isolated; and anqāʾ sandhills.
The shelter is weak: a diminished tree among unstable dunes. The setting reinforces vulnerability rather than genuine safety.