this is from Fada`s Farsaing (Far and Wide). Quote:
Old Scottish Methods to Find Your Future Mate
If you are looking for your perfect mate here are a couple of old Scottish customs that can assist you

The first time you sleep in a strange bed put a ring on your finger, place one shoe under the bed and enter the bed backwards. You will see your future mate in a dream.

If you are a lady desiring to see your future mate read the third verse of the seventeenth chapter of the Book of Job after you eat your evening meal, wash the dishes, and go to bed without the utterance of a single word, placing below your pillow the Bible, with a pin stuck through the verse you have read. Your future mate will be seen in a dream.

The first time your hear the note of a cuckoo turn around three times on the left heel against the sun, search in the hollow made by your heel and in it a hair the color of the hair of future mate will be seen.

To see if your current lover would make a perfect mate take three stalks of blooming carl-doddie or Ribwort and strip their blossoms. Then lay them in the left shoe, which you place under the pillow. If the lover is to become your mate the three stalks will be once again in full bloom in the morning. If the lover was to prove untrue then the stalks remain without blossoms.

Hope these are helpful.

Although it might sound daft, all the contortionism, there`s many a tradition in witchery of getting into unseemly physical positions in order to affect magic. Heathen witches were noted for it...one account tells of the witch bending over to look between her legs and walking toward an intended victim this way scaring the shite out of him.
I have a theory that it`s a simple aid...the act of being physically `out of true` means that the magic you seek to do or find is that bit more marked in your mind and thus liable to be more effective.
That, and there`s somewhere a bunch of Sidhe folks tittering like crazy at what you`re doing......