Hi Kadak,
As far as Kala chakra mantra, (or any mantra for that matter) requiring some ritualistic initiation and transmission from our teacher or guru, who is the flesh and blood representation of H.H. The Buddha, or from H.H. Lord Shiva, could one say, along the lines of AYP principles, that we have or ARE that guru within us? Buddhism and Tibetan Buddhism in particular, seems steeped in ritual and formality which may not be so culturally needed in our free ranging and fiercely independent minded western culture. Besides I am just a simple guy, with no physical guru in sight, and so we have little recourse but to have faith in that guru within us. Or alternatively, you may be willing to conceed to the premise that we had the pleasure and the grace of sitting with this allegedly required guru in a previous lifetime whom we needed so much to have as the flesh and blood representation of Divinity, during that previous incarnation, and our guru has dropped the body and now you have become that representation of the guru, yourself. And so ultimately, in this brief and sweet physical incarnation of yours and mine, we are left with the ultimate wisdom of H.H. Yogani and his thematic statement which it is a great honor to now myself recite and resolve, as his momentary representative, here, in webspace, that...The guru is in you. Much love to you.
John