Samadhi transcends the 5 layers of consciousness to bliss body awareness. Equanimity and mindfulness are attained, and one is in connection with everything. We can feel the Schumann resonance a significant amount at this level. We are the thing, the thing observing the thing, and the meaning we give to the thing. Reflection lifts and the mind is empty.
Samadhi is when mental fluctuations cease, and a withdrawal from the outside world reaches a state of interconnectedness.
One can achieve samadhi through the 8 limbs of yoga while sitting in Lotus, Padmasana, or Sukhasana, Easy Pose.
Kundalini rising
Soul trying
Light igniting