Every faith in one way or another teaches that you must know yourself, i.e., you must realise your true Self. In the past those who sought Self-Realisation walked a path of renunciation, cleansing and meditation to achieve it, whereas others believed they could reach union through devotion. If a seeker had a teacher or Guru who was himself Self-Realised, he had a chance of getting his Kundalini awakened. But that path usually required arduous practices of sacrifice and self-discipline. Seekers of Self-Realization had to overcome all vices, attachments and baser desires in order to clean their Chakras. Many did not know how to pass it on because their own experience of the Kundalini had been spontaneous.
All of this changed in 1970, when Shri Mataji Nirmala Devi, in deep contemplation of the struggles of mankind, spontaneously developed a method of giving en-masse realisation, the first to achieve this in modern history. Shri Mataji gave Self-Realisation to thousands all around the world and all those who receive it are able to pass it on.
This is a unique time in history. Although our Chakras might not be fully opened, our Kundalini can rise even with just a few strands, like small threads which could ultimately form a thick rope. The Kundalini connects us, giving us the clarity and balance to see and correct ourselves, while continually healing any weaknesses in our subtle system.