The first and foremost component in constructing any Vastu is the selection of the plot. The shape, slopes, location, quality of land, roads and many other factors have to be considered before the selection of a plot . While selecting any plot of land, the following eight characteristics have to be considered in detail:
1. Soil Analysis 2. Shape of the Plot 3. Slopes within and outside the plot.
4. Roads around the plot 5. Plot Extensions 6. Plot Cuts
7. T Junctions 8. Bad objects inside the plot.
Soil Analysis : Soil inspection determines the suitability of a particular plot for a Vastu. Based on the soil inspection, it is to be determined whether the plot will be suitable for residential, agricultural or commercial purpose.
Colour, Smell and Taste of the soil
In the past, the land was divided into four broad categories, namely Brahmin-land Kshatriya-land, Vaishya-land and Shudra-land, based on the smell, colour and taste of the soil. The land was put to the appropriate use with beneficial effects depending on these factors. However, with the passage of time, the social system has undergone a great change and the classification based on the four occupations has presently become irrelevant. Therefore, the concept of the construction of Vastu based on the occupational classification does not exist today. However, if we introspect on this aspect, with a different perspective, it will transpire that a Vastu constructed based on the above principles can accelerate the progress.
Let us now discuss about the classification of the soil according to the smell, colour and taste.
a. Smell of the soil: If the soil emits a pleasant smell of oil, ghee or blood , such a plot is considered auspicious. However, if the soil has a bad odour or foul smell the same is not auspicious.
b. Taste of the soil: If we put a few grains of the soil in our mouth and it tastes sweet or pungent such a plot is considered is auspicious. If the soil tastes salty, bitter or sour, such a land is not good for construction.
c. Colour of the soil: A morsel of the soil should be placed on our palm and rubbed in order to analyze the same. A plot is considered beneficial, if the colour of the soil is white, red, yellow or like murum (mixture of black, yellow, green ). If the soil is black in colour, such a plot is not suitable for the construction of a Vastu.