He told them still another parable: "The kingdom of heaven is like yeast that a woman took and mixed into a large amount of flour until it worked all through the dough." ~ Matthew 13:33
A small bit of yeast. Mixed into a large amount of flour. Worked all through the dough. And changing it.
It's amazing how something which seems so very small can change things so very much.
A little bitterness, a little sadness, a little resentment, a little anger can fill a heart, a mind - a life - with darkness.
The opposite is also true.
One little smile can change a day.
A little gratitude, a little giving of thanks, a little praise for all the Lord provides can change an outlook.
A little faith. A little hope. A little love. Can all change a situation - even an entire life - for the better.