Being overly busy can be a manifestation of being proud. These things invite, bring, or produce pride. Knowledge puffs up, but love edifies. Prosperity or successful accomplishment. 17 NKJ 17 Command those who are rich in this present age not to be haughty, nor to trust in uncertain riches but in the living God, who gives us richly all things to enjoy.
Pride is associated with being a novice.
This implies that with experience people should be less susceptible to pride. Both can cause a person to be bold and confident. The focus of the person's speech and how they treat other people. If their speech focuses on themselves, or another human, it is pride. If it is on God, it is faith.