Lord Ganesha is widely worshipped as the Remover of Obstacle and more generally as Lord of Beginnings and Lord of Obstacles, patron of arts and sciences, and the deva of intellect and wisdom. He is honoured at the beginning of rituals and ceremonies and invoked as Patron of Letters during writing sessions.
Sindhurmani Siddhivinayak puja is - way to please Lord Ganesha and get rid of all the turmoil and problems. Being the well-wisher of all his devotees, Vinayak bestow his devotees with happiness and prosperity.