Ganesha has only one tusk; the other is shown broken. There is an interesting story as to how Ganesh happened to get an elephant's head and how one tusk got broken. The symbolism of the broken tusk is that the wise person is beyond duality.
We tend to think that we end when our bodies end in the material world. We are the first person. All else is different. This duality is created by the mind which creates the ego to help us survive in this world. This 'me-other' duality is the screen keeping us from realising our real Self, which is beyond body and mind. Once we transcend this duality, we see the entire Universe as a single whole and we become aware of our true Selves. The single tusk of Ganesha symbolises this non-duality. Wisdom allows us to see all as one and ourselves an integral part of the whole.
Ganesha is shown sitting with one foot on the ground and the other resting on his knee, above the ground. The wise person is of this earth, yet not entirely of this earth. Source: Times of India 🐘🎨: @dylansara 🕉✨🙏