Vastu Pooja is performed to seek the blessings of Vastu Purusha, the deity associated with the principles of Vastu Shastra, which is an ancient Indian architectural science. The purpose of Vastu Pooja is to harmonize the energies of a space and promote well-being, prosperity, and positive vibrations within a home or building. Place a picture or idol of Vastu Purusha at the center of the altar. You can also include other deities or yantras associated with Vastu, such as Lord Kuber (the deity of wealth) or Vastu Yantras. Arrange other necessary pooja items like flowers, incense sticks, lamps, fruits, and sweets. Begin by invoking the presence of Vastu Purusha and offer prayers for the well-being and harmonious energies of the space. Chant mantras or recite Vastu Purusha Vandana, seeking the blessings and guidance of the deity.