Sphatik Nandi for Vastu / Fengshui
Nandi is the name of the bull which serves as the vehicle of Lord Shiva. It is a common belief that Nandi stands patiently for the orders of Lord Shiva but there is a deeper meaning to it.
Nandi stands still and is a symbol of eternal waiting. Because simply sitting and waiting is one of the basic and most important qualities of mediation, Nandi holds a significant importance in meditation and spirituality. It is also sometimes called meditative bull.
You will commonly find Nandi bull outside temples in India which gives you a message that you need to have a quality of simply sitting and doing nothing if you are entering in the temple. Do not have any expectations and do not ask for anything. Just sit and have no expectation and be alert.