Jai Sri Ganesha,
Devotion dignify the truth of devotees,
Devotion invite attention of the deity,
And helps in purification process of mind and the soul,
It leads devotees to the sainthood which ultimately cater the light of spiritual wisdom,
Occasion and location truly help devotees to make it suitable,
Full moon and New Moon are two define occasions for respective discipline which invite immediate attention of moon god,
May Lord bless all,
Thanks please