It's because quantity < quality. The power generated lies in the breath, and with short breaths, you generate less power.
So faster?
Some time ago you talk in the Italian forum about how I perform vibrations. Personally I can not do a breath for each vibration, rather I do a breath that includes up to 10 15 or 20 small vibrations (speaking of short mantras such as maum, gaum, klim ...) I fully perceive the energy and I get...www.ancient-forums.com
The power is in the breath. So Thoth said.
The humming breath is the foundation of mantra. It is a basic pranayama you can find on the list of breathing exercises on JoS. The more drawn-out the breath is (WITHOUT STRAINING YOURSELF!)*, the more powerful is your mantra practice. Intent and focus can make up part of this, as some people who are not really ready to use mantra tend to get distracted when vibrating properly. However, in no way you can achieve with fast vibrations as much power as proper vibration done by someone is actually read for mantra (laser focus, full-on intent).
There was a scheme HP HC shared a while ago. I don't remember which topic was this in. It would be great if someone could link it, in order to offer a fuller picture of the HP's post. It went like this, from the most powerful to the least:
1. Full vibrations
2. Fast vibrations
3. Whispered vibrations
4. Mental vibrations
Obviously, the vibration should be of the proper frequency for what you're working, and you will feel it in the specific part of the soul. If it's not the right frequency, you're doing little to nothing at all.
