The reality is that many plans do not succeed completely, often due to various unforeseen circumstances. The character's survival as a Ranger illustrates that adaptability and responsiveness to real situations are more crucial than having perfect plans. He learned that simply sticking to a plan can lead to failure, but being flexible and reactive can lead to success.
This insight highlights the importance of being pragmatic in the face of unexpected challenges. Life often diverges from our careful preparations, and those who thrive are the ones willing to adjust and respond effectively to new information, rather than relying solely on their initial plans.