Vastu Shastra is an ancient Indian science of architecture and design that originated from the Vedic traditions. While it is related to Vedic principles, it is not directly a part of astrology but rather a separate body of knowledge focused on creating harmonious and balanced living spaces. However, it does have some connections and overlaps with astrological principles, particularly in terms of the influence of cosmic energies on the environment and individuals.

Here's a detailed description of Vastu Shastra and its key principles:

1. Origins and Philosophy: Vastu Shastra is believed to have originated thousands of years ago, with its principles laid out in ancient Vedic texts such as the Vedas and the Puranas. The word "Vastu" means dwelling or building, and "Shastra" refers to science or knowledge. It is based on the idea that the design, layout, and orientation of a building can have a significant impact on the well-being and prosperity of its inhabitants.
2. Five Elements: Central to Vastu Shastra is the concept of the Pancha Bhutas, or the five elements – Earth, Water, Fire, Air, and Space (Ether). These elements are believed to govern the universe and influence the energies within a space. Vastu principles aim to harmonize these elements within the built environment to create a balanced and auspicious space.
3. Directions and Orientation: Vastu Shastra emphasizes the importance of directional orientation in architecture. Each direction is associated with specific energies and deities, and the layout of a building should be aligned accordingly. For example, the entrance (main door) of a house should ideally face a favorable direction based on the occupants' astrological charts.
4. Layout and Design: The layout and design of a building are also crucial in Vastu Shastra. The placement of rooms, furniture, and other elements within the building should follow prescribed guidelines to ensure optimal flow of energy (Prana) and to avoid any negative influences.
5. Zones and Functions: Vastu Shastra divides a building into various zones, each associated with specific functions such as sleeping, cooking, studying, etc. The placement of these zones within the building is determined based on Vastu principles to enhance the well-being and success of the occupants.
6. Remedies and Corrections: Just like in astrology, Vastu Shastra offers remedies and corrections for any imbalances or negative influences in a building. These remedies can include architectural adjustments, use of specific materials, installation of yantras (energy grids), or performing rituals to harmonize the space.
7. Application: Vastu Shastra is applied not only to residential buildings but also to commercial spaces, offices, temples, and other structures. It is considered during the design and construction phases of a building as well as during renovations or modifications.

Overall, Vastu Shastra aims to create living and working environments that are in harmony with natural forces and cosmic energies, promoting health, prosperity, and spiritual well-being. While it is not directly a part of Vedic astrology, it shares common philosophical principles and is often used in conjunction with astrological practices for holistic well-being.