One of the commentaries I read before I prepared this meditation suggested that Jesus may have been feeling a little discouraged. He may have been upset that his messages were not being as well accepted as he had hoped. In verses 3 - 8, Jesus tells how some seeds fall along the path. A trail going through the field that has been walked on so often that it is packed down hard. The seeds just lie on the ground, exposed in the open, where birds can see them and eat them up.
Some seeds fall on rocky places.
Not ground covered with small stones, but shallow soil on top of solid rock. They begin to take root, but because of the underlaying level or rock, the roots don't grow deep enough to provide enough moisture to sustain the plant. So when the sun comes up, the plants are scorched and wither away, because they weren't rooted firmly enough into the ground. Then there are those seeds that fall among the thorns. Weeds really, that black the suns rays, compete with the newly sprouted plant for nourishment, and eventually kill it.