In Vastu Shastra and some astrological traditions, the southeast zone of a dwelling is associated with wealth, finances, and cash flow. It is believed that activating this zone can positively influence one's financial situation. One simple yet effective remedy often suggested is placing a red bulb in the southeast corner. The color red is associated with fire energy, which is believed to stimulate activity and growth in this area. This, in turn, is thought to enhance cash flow and attract financial opportunities. While this is a common Vastu recommendation, it's always advisable to consult with a Vastu expert or an astrologer for personalized guidance. They can assess your specific situation, considering the layout of your space and other astrological factors, and suggest tailored remedies for optimizing your finances.