If you dreamed that it was dark during the day: upcoming events may require you to plan, or you may start to become interested in different philosophies or topics. To have a dark day in a dream indicates that a person with a dark heart will suffer and be sad, a difficult life, not being able to act rationally and being sad. Praying that the day will not be dark in a dream means that a person who has surrendered his heart to God and turned his back on sins will find peace.