Oscillation to Vibration Incompatibility
The process of how fast or slow the energy expands away from the center point of the source field is the Oscillation rate. The process of how fast or slow the same energy contracts back towards its center point of source field is the Vibration rate.
The combination of both the pattern of Vibration (contraction) and Oscillation (expansion) speed is what determines the frequency rate of all energy and all things. As our personal, collective and planetary consciousness rises in frequency, the matter world becomes less dense. Our physical bodies also become less dense as our frequency increases. However in the world of matter, as we drop density we can feel that our body is experiencing energy loss. Sometimes, our Blueprint is holding a much higher frequency and energetic download, which is accreting and not yet absorbed, and this can make the body feel extremely dense. It is important to know this is a common Ascension symptom when the physical body is acclimating to embody higher frequency. When we have Ascension Flu and exhaustion symptoms, from acclimating to new energies, this is not an entropic process. This is actually Negentropic as the body is acclimating to embody more light in the cells, and generating more ATP. At stages of Lightbody accretion, the body will experience oscillation to vibration incompatibilities, through the exposure to higher frequency rates in the blueprint versus the body. When this occurs, it is possible for the person to experience sensations of heavy density, shadow clearing, and as the body senses the gravitational pull, this creates pressure. The energetic pressure can feel as if it is bearing down on the body from the crown of the head. Tension and stiffness from the influx of new energy will apply pressure for the body to circulate and distribute these energies. This is first commonly felt in the head, neck and shoulders. Sensations of pressure, moving down with thermal energies circulating in other areas of the body comes later. During the body's absorption phase, the lightbody is more unstable. Before the new frequency is fully integrated, while in this phase, you will feel tired and need more sleep.
Learning how to accurately discern the necessary energy expenditures that are for productive and spiritually healthy purposes, such as lightbody integration, will help you to recognize that not all energy expenditures are equal. Directing energy towards developing ourselves spiritually, gaining virtues, and staying awake while others are asleep, can be an exhausting job. This is not entropic. As we commit to our personal spiritual development and live a lifestyle in accordance to the Law of One, all energy will be returned to you, and over time, it will be made Krystal clear! 
Integrating Higher Self Embodiment
When we integrate and embody more aspects of the multidimensional higher self we also access higher dimensions of consciousness, thus our experience and perception of the physical realm greatly changes. As we acclimate to the current planetary shifts it can feel incredibly disorientating and physically uncomfortable, and at times we may experience great energetic pressure inside the body that may feel overwhelming. The sensations of massive pressure exerted upon the physical body has been described as oscillation to vibration incompatibilities, another Ascension Symptom. This occurs during the Embodiment process as we endure electromagnetic recalibration between the particle layers of matter vibration and higher frequency oscillations throughout the collective consciousness Blueprint levels.