Acausal: The term acausal refers to "acausal time and acausal space": that is, to the acausal Universe or continuum.
This acausal Universe is part of the Cosmos, which Cosmos consists of both the acausal and the causal, where "causal" refers to the Universe or continuum that is described, or re-presented, by causal space and causal time. This causal Universe is that of our physical, phenomenal, Universe, currently described by sciences such as Physics and Astronomy (the mundane plane).
The acausal is non-Euclidean, etheric, trans-dimensional, and "beyond causal Time": that is, it cannot be represented by our finite causal geometry (of three spatial dimensions at right angles to each other) and by the flow, the change, of causal time (past-present-future), or measured by a duration of causal time. In addition -and just as causal energy exists in the causal (understood as such energy is by sciences such as Physics) -acausal energy exists in the acausal, of a nature and type which cannot be described by causal sciences such as Physics (based as these are on a causal geometry and a causal time), we can say that metaphisics are just started to grasp what is going on but the field is huge.
According to the aural tradition of the Devilist current, there are a variety of acausal life-forms; a variety of acausal life, of different species, trans-dimensional beings or simply outher-simensional beings, some of which have been manifest in (or intruded into) our causal Universe in multiple ways and for multiple reasons.