Goddess Lakshmi finds mention in an annexure to the oldest of Indian texts, the Rig Veda – the Sri Suktam to be precise.
What is interesting is that she continues to be depicted in popular art based on the descriptions given in the Sri Suktam. And so, we find her sitting on a red lotus in a pool of water, carrying a pot on her hands while two elephants stand on either side showering water on her.
This video explains the significance of each of these elements – the waters, the kumbha/pot, the lotus and the elephants.