Peer Response Length: A minimum of 150 words per post, not including references Citations: At least one high-level scholarly reference in APA per post from within the last 5 years Peer Post: Nursing theory and nursing theory in practice are likely experienced from the first and initial clinical rotations and didactic learning sessions. It is also likely that several theories might be applicable to single nursing phenomena whether that be a particular clinical scenario that is unique to nursing and to any aspect or function of nursing including patient advocacy, education or practical nursing tasks and duties. On the other hand, an RN might be hard pressed to apply a potential theory to a nursing process or experience. Young inexperienced nurses as well as seasoned nurses might not even be fully aware or cognizant of any applicable theory which might speak to and even guide their work in any given setting even though most nursing functions likely fall under the framework of a nursing theory. Theories that this author has experienced through application or implementation through nursing work primarily in hospital settings include Kurt Lewin’s field theory of change which stems from a psychology perspective as some might consider Lewin a father of modern psychology and Martha E. Roger’s Theory of Unitary Human Beings which shares similar concepts to Lewin’s theory regarding the “field” that individuals share with their environment. Though other more practical theories might be noted in this post such as Watson’s Science of Caring Theory or Orem’s Self-Care Deficit Theory, it is the prior noted theories that are noted here because of particular interest due in part to the duality of both tangible and intangible interpretations and applications of these theories. Kurt Lewin’s field theory speaks to change theory which proposes that a patient’s (human behavior) behavior stems from factors pertaining to both the environment and the individual specifically evaluating the patterns of interaction between them.  Understanding the root causes (or lack of) can help to then weaken or strengthen the factors related to a behavior with the goal of bringing about change that is applicable to individuals or processes within a system, such as a health care organization. Lewin’s change theory includes three stages of change, first the unfreezing in which a need for change is initially realized and includes doing away with current, old practices, second is transition period in which new ideas are incorporated and third is a refreezing in which the new practices are solidified as the new norm (Shirey, 2013). Though this theory can be applied to achieve change towards best practices in a variety of settings, the theory is also applicable towards promoting change within individuals for the purpose if gaining well-being and improved health outcomes. This theory can be helpful to patients in a variety of settings including mental health patients whom I work with on a regular basis. Understanding the past physical (including drug use) and psychological trauma of patients will assist in fostering a patient based, therapeutic relationship on which many of the other treatment goals can be implemented from. It is often difficult to demonstrate some of the Grand Theory ideas such as Rogers: Science of Unitary Human Beings. Within this theory, nurses seek to advance and promote patient health and wellbeing based on the results of interaction between patient and the environment (this is similar to some tenets of Nightingale’s philosophy) and are therefore considered a single unit depicted as the mutual human-environmental field process (Aranha, 2018).  Reflecting on day to day work as a staff RN in various med/surge units as well as the behavioral health units, I don’t always see the connection or relevant correlation between some of these concepts and practice. It is increasingly apparent however the beneficial role that nursing theory plays towards improving and building on nursing practice.  It is important for nurses to continue to advance research and education to help narrow some of the gaps between nursing theory and nursing practice (Mackey & Bassendowski, 2017).     Aranha, P. R. (2018). Application of Rogers’ system model in nursing care of a client with cerebrovascular accident. Manipal Journal of Nursing and Health Sciences (MJNHS), 4(1), 51-56. Retrieved from https://search.proquest.com/docview/2115197637?accountid=100141   Mackey, A., & Bassendowski, S. (2017). The History of Evidence-Based Practice in Nursing Education and Practice. Journal of Professional Nursing, 33(1), 51–55.   Shirey, M. R. (2013). Lewin’s Theory of Planned Change as a Strategic Resource: JONA: The Journal of Nursing Administration, 43(2), 69–72. https://doi.org/10.1097/NNA.0b013e31827f20a9