The Pot contains a Deep which means light. The light represents the Divine shining through the perforations and the Pot symbolises the womb universe.
 
This combination of Pot and light is known as a Garba Deep The Garba Deep has another symbolicinterpretation, that the vessel itself is a symbol of the body, within whom Divinity (in the form of the Goddess) resides.  

Garba is danced around this symbol to honour the fact that all humans have the Divine energy within them

The dances which are performed around the Pot are called Garba.
Initially women will start dancing in a counter clockwise circular form around the Pot, with each dancer following the same sweeping motion, with differing vigor and clapping  at regular and frequent phases.

The dances celebrate femininity and fertility and venerate a range of Divine Mother Goddesses