The parable of the mustard seed was a reply to the question: could the kingdom really grow from such humble beginnings?
It seems that what life intends to be great it first makes small.
Many great things and undertakings begin in small and often hidden ways.
For example, a building begins with one brick on another, a book begins with one word on a page, a song or symphony with the first note, a journey with a single step, a forest fire from a single spark, a giant oak from an acorn, a huge river from a tiny spring, a lifelong friendship from a chance encounter.
Things that have a certain integrity and truth always seem to start from humble beginnings.
Seeds need the darkness, isolation, and cover of the earth in order to germinate.
Therefore, for something to begin small, hidden, anonymous, is in fact an advantage.