You mean this spell:
Do you know how magic works, and are your basics well-founded?
Does "Tama tama ki ki" mean anything to you at all?
Even if you can find out what a "temple cross" gesture is (a brief stint on a search engine reveals nothing for me, except either some connection with the Knights Templar though no gesture is mentioned, or perhaps crossing two fingers to form a cross -- thought I wonder if it is meant to be crossing one's self the way Catholics do so), do you know how this would or would not affect the outcome?
Keep in mind the person who posted it cannot spell the word obstacle.
Simply repeating a chant and going through the motions of a prescribed ritual will not do very much for you.