The Hindu Cult has three aspects_
Philosophy, mythology and rituals,
Philosophy deals with the truth of life and the God, Goal of Man and path to make it,
Mythology tries to bring-forth that perceptible truth for the cause that to help the man,
Rituals truly helps man to varyingly to make it unto pitch of Philosophy and Mythology, energy and emotions are kept with for eternal cause,
The Sun and The Moon redirect the truth on the pitch of time scale on facets of life for man in the form of events and festivals that to participate for a fair journey of life that to sail safe,
Great sages and saints of ages and aeons have prescribed the events and the festivals to relate with,
Man needs to observe them all with faith and submission that in true spirit,
The Hindu festival and sacred Days are meant for the define cause, multi-facet designs of this truth is for purpose of achieving the metamorphosis of the human being,
May Lord Bless all,
Thanks please