The Hindu Gods and their consorts – I

What is the significance behind Brahma, Vishnu and Shiva’s consorts?
Brahma is the Lord of creation. To carry out the task of creation properly, the most important requisite is Knowledge or Vidhya, so we have Saraswati as his consort.
To sustain and maintain this world, Maha Vishnu is the presiding deity; to support this work, the primary requisite is Bhoomi (the land) and ‘Sri’ ( all the wealth including dhAnya- food grains etc.) and so they are the consorts of Maha Vishnu.
In order for Lord Shiva to undertake the task of destruction, Shakti or energy is required, and so Shakti is the consort of Lord Shiva.