The wonderful thing about Kundalini is that it will come when it comes. All one needs to do is to remove the obstacles that block the rise of the primal energy of life. In fact, it is much better to let it come on its own terms, rather than going to extreme measures to make it rise. With regular experience of Samadhi, it will surely rise if and when it really needs to.
When we human beings are in a state of suffering, identified primarily as little selves, we are essentially like plugged up conduits. The energy of life wants to move through us, but because we are all bound up with judgment and trauma, we make what could be a joyous ride into a rather more difficult affair! With meditation, yoga, and pranayama, as we begin to unwind and become unblocked, life starts to flow again- in spurts and gushes. When we have a solid grounding in the vast Oceanic awareness, then the experience of this energy moving, whether it be Prana or it is Kundalini, will not overwhelm us. If we are not similarly prepared, we might encounter some turbulence!
The same is true when we think of the state of the nervous system itself- gradual preparation of the whole spectrum of our being, allows for the greatest integration of the once again flowing energies of life, with very little risk for the damage- psychical, psychological, and physical- that can potentially accompany attempts at bypassing the preparation.
In this life, the most powerful Kundalini experiences came completely as a bi-product of practicing Ascension (all of the techniques have the bi-product of cleansing the energetic channels, and many of the advanced techniques deal with specific pathways and chakras), without doing anything else to attempt to bring them about. Because there had been a good deal of preparation of the whole organism, there was very little friction such as shaking (shaking typically indicates remaining blockages within the channels) that went along for the ride, just a singularly powerful, smooth, and blissful current from the base of the spine up the center of the spine (the Sushumna) and out the top of the head, leading to a marked sense of Omnipresence. When the basic existential tension of the ego dissolves to a certain point, the difference between the self and life dissolves, and the whole reveals itself to be the very body of one’s own Consciousness.
Shakti Kundalini is the slumbering “coiled” Love of our own Self. As we relax into our own Higher Consciousness, the artificial barriers to Love dissolve, and the Goddess of Life once again dances freely through our lives.
So many of these accounts can sound fantastical, but in a way, opening into these stratas of consciousness is the most mundane thing we can possibly do. Instead of going “way out there”, for most people, the whole process is better described as becoming increasingly comfortable in their own body, being perfectly present with all that transpires.