I recently did a tahara and I was curious about where a lot of the practices came from and what the meaning behind them is.
One thing we did was we tied strings around various locations of the deceased. We tied a string over the tachrichim (shrouds) around each leg right above the ankles, and around the waist. We also tied the neck of the shirt closed, but I don't know if that was for the sake of tying a string or just for the sake of closing the neck of the shirt.
Why are these strings tied at these locations?