Lord Ganesha is a demigod who is worshipped first amongst all other forms of demigods according to Indian vedic scriptures. The reason being he removes all the obstacles coming on the path of his worshiper and grants him or her immense success.

Therefore, before starting any important new task or venture in life it is great boon to worship Lord Ganesha. To seek his blessings in order to make clear the forth coming impediments from the path leading to success and abundance.
Ganesha is giver of success and power. Removes troubles and makes life easy and auspicious.