Yellow is the colour of the sun, of gold, and of fields of grain in the autumn just prior to harvest. Hence it is associated with richness, abundance, and fecundity. The sun is probably the most important thing in India and features in the mythologies of all the various sub-cultures. It is also a potent symbol.
The sun is the key to everything. Just enough and the plants grow and ripen, but too much and plants, animals and people start to die. The sun has many names in India - Surya, Vairocana, Prabhakara, Aditya, Mitra, Savitri, etc. Gold is a precious substance where ever it is found. Gold does not tarnish. It is both ductile and malleable and can be made into any shape, or beaten so thin that light passes through it, picking up a greenish tinge on the way.
