Jai Sri Ganesha,
The most ancient cult is the Shivism Shiv cult, it is eternal that related by time in the sphere of ages,
The Philosophy of Shivism is the composite truth of the trinity that Atman, Parmatman, and the Maya,
The beauty of Shivism is beyond words, it is subject to experience in truth with discipline and respective festivals help devotees to reach,
High philosophical tenets are couched in the simplest form for the ease of Atman to enjoin the truth of self-evolution, purely it is to oblige self alone,
May Lord bless all,
Thanks, please