It is very gracious that God gave us to be able to form tunes in our mind .
Sometimes when things go really sad I find myself humming a tune and I feel that without my words ( just my noise), God is hearing my heart.
Other times when I am very glad and I need to really find the right words to express it, it comes out like this "la la la lala"
Or other time simply to entertain myself or to annoy my sisters or or in the shower!!