The phrase generally means to find a path through two opposing views. It's often done by politicians who try to have their cake and eat it too.
When you hear or read "thread the needle" it means take the end of the thread and push it through the hole in the needle. There are several different methods of threading the needle. You can find three here: http://needlepoint.about.com/od/toolsandsupplies/ss/needlepoint001.htm
In reference to "find a needle in a haystack" you increased precision to the point that you could not only find the needle, but you could thread it where it laid.
In WWII a pilot had trouble finding his target much less when he did see it, for the bombardier to hit it, so we just mass bombed areas, often the only thing remaining in the town was the target. With improved navigation and bombing they were able to fly to a precise spot and drop a limited number of bombs. They were able to find the needle at 45,000 feet, and so to speak, thread it, or fly through it, or put a bomb down the stack (smoke stack).
To use a needle and thread could be called sewing.To use a needle and thread could be called quilting. To use a needle and thread could be called embroidery. To use a needle and thread could be called suturing.
No but the sewing machines thread the needle for you will help.
You fasten material with needle and thread by sewing the material. In most cases, you will place one piece of material on top of another and then stitch the material together with the needle and thread.
A hypodermic needle. a record player needle
I am having a bit of difficulty with putting this thread through the eye of the needle. You haven't a thread of evidence!
A needle.
The thread moves from the spool through the needle to make stitches on a sewing machine. The thread take-up lever is what feeds the thread from the spool to the needle as it moves up and down.
the function of long needle thread will direct in the long needle.
Poke or thread. Since you ride a bicycle, you would thread or poke a needle.
With a needle, I guess.
Pass a thread through the eye of a needle unaided from the opposite side of the needle towards the human eye; while looking through the eye of the needle.
Sow is a word meaning to plant something. Its homophone is sew, or to use a needle and thread.