One of the lies the Devil tells us is that there is no need to overdo things or to rush to do things. There is time. Relax. There is always tomorrow. Or he will say that we haven't done enough. We have to do more to please God. Laziness or burnout. Neither way leads to God or please God. Zeal is a virtue that seeks to do the will of God out of love for God, according to his timing and plan. it is only excessive in intensity of love, leading to deeper union with God. In the words of St. Faustina: "A zealous heart is one that finds great excitement in the activities of the day."