In what stage we experience strange and extremely vivid sensations or a
feeling of falling followed by sudden muscle contractions. *

Those who practice meditation, or deep prayerfulness, often kinda “hang out” in Alpha. It's a restful place. During this stage, it's not unusual to experience strange and extremely vivid sensations or a feeling of falling followed by sudden muscle contractions. These are known as hypnogogic hallucinations.

wellness is an overall state of well-being. the quality or state of being healthy in body and mind, especially as the result of deliberate effort