Question: Then what about meditating on the base of the spine and trying to raise the kundalini from there. Is that also unsafe?

Sri Chinmoy: Some people very often make a mistake. They try to raise their kundalini in the traditional way, starting from the base of their spine; but their vital remains impure. Then they get into a lot of vital trouble. They say, "Oh, before Yoga I was far better off. I was very pure, but now my purity has all gone."

From:Sri Chinmoy,Kundalini: the Mother-Power, Aum Press, 1973
Sourced from https://srichinmoylibrary.com/kmp