Burying threads in quilts is a nice and neat way to finish your top (and all that hard work) and get rid of any 'loose ends' (pardon the pun)!
Until recently, I never realized I buried my threads in my quilts differently when I hand-quilted to when I machine-quilted! Crazy I know!
On a machine, I used to reinforce my stitches at the beginning and at the end by stitching forwards and backwards, then forwards again. This was to secure the ends so the stitches wouldn't unravel - ever! Then ...