Like you perhaps, I’ve read the parable of the sower many times. It’s also referred to as the Parable of the Soils. There were four soils, representing four different kinds of people who all heard the Word. This is recorded in three gospels: Matthew 13, Mark 4 and Luke 8.
Some people operate out of aspiration. They “aspire” to do this or that, but it stops there and never actually gets done. Other folks are action-oriented. They aspire to do something and then they go do it. Now, part of the reason that the “aspirational folks” don’t move to action is because there’s a gap. Perhaps it’s a fear gap or a lack-of-knowledge gap. Maybe a weariness gap, but whatever the gap is called, it blocks forward motion.