Reply :- Tantra is the application of cosmic sciences with a view to attain spiritual ascendancy. and just like cosmic rays, distance, color, medium, etc have no meaning nor it make any difference. In modern science you can take it like online chatting, where the Guru Tantrik, makes the connection with your cosmic existence and chats with your soul. If the chatter is from your next computer or from another side of world, it do not make any difference, but it should be online.
You are alive means you are online, now only Tantra Guru is required to activate Chat room in cosmos.