What does the good ground symbolize in the parable?

In the parable of the sower, the good ground represents individuals who have been regenerated by the Holy Spirit and, therefore, possess a new heart receptive to the gospel. These believers hear the word of the kingdom, understand it, and produce spiritual fruit. This illustrates that the effectiveness of the gospel is not in the individual but in the work of God through the Spirit, who prepares and enables sinners to receive the truth. The good soil, therefore, reflects the miracle of grace that leads to genuine faith and obedience.