Easiness
Part of speech: noun
Definition: The quality of being easy; simplicity A feeling of being at ease, feeling relaxed and untroubled.
Relaxation
Part of speech: noun
Definition: The act of relaxing or the state of being relaxed; the opposite of stress or tension; the aim of recreation and leisure activities.A diminution of tone, tension, or firmness; specifically in pathology: a looseness; a diminution of the natural and healthy tone of parts.Remission or abatement of rigor.Remission of attention or application.Unbending; recreation; a state or occupation intended to give mental or bodily relief after effort.The transition of an atom or molecule from a higher energy level to a lower one.The release following musical tension.
Example sentence: Acting is just a process of relaxation, actually. Knowing the text so well and trusting that the instinct and the subconscious mind, whatever you want to call it, is going to take over.