The letters SRNIGTIAFEAR can spell the phrase "after arising" among others.(There is no one word anagram, so the letters may have been miscopied.)The letters can also spell nearly 600 smaller words...
Those letters can be used to spell "giraffe".
fester feet fires figs ere err reset re-gift gifts grifter tigers and many more
Fisting is a form of female masturbation in which a hand, clenched into a fist shape, is inserted into the Vagina.
Square Root of Sixty Four