Religion is the realisation of spirit as spirit. What are we doing now? Just the opposite, realising spirit as matter. Out of the immortal God we manufacture death and matter, and out of dead dull matter we manufacture spirit.
If you [can realise Brahman] by standing on your head, or on one foot, or by worshipping five thousand gods with three heads each — welcome to it! ... Do it any way you can! Nobody has any right to say anything. Therefore, Krishna says, if your method is better and higher, you have no business to say that another man's method is bad, however wicked you may think it.
- Swami Vivekananda
(Delivered in San Francisco, on May 29, 1900) The Complete Works of Swami Vivekananda/Volume 1/Lectures And Discourses/The Gita III