Analysis:

This quatrain by Saadi Shirazi is a powerful expression of determination and resilience in the face of adversity. Let's break down the deeper meanings:

Decision and Action: The poet decides to end their hesitation and take action. The phrase "this deliberation will last no longer" shows a sense of urgency and resolve.
Facing Adversity: The poet is prepared to face any danger, be it a sword or an arrow. This suggests a willingness to confront their challenges head-on.
Seeking Reconciliation: The poet's desire to "grasp his sleeve" signifies a wish for reconciliation or a personal connection with their adversary. This shows a glimmer of hope amidst the conflict.
Submission: If reconciliation is not possible, the poet is willing to submit to their enemy's will. The phrase "go to his threshold" implies a gesture of submission or seeking mercy.

Themes:

Determination: The poet displays a strong sense of purpose and determination.
Resilience: The poet is willing to face adversity and overcome obstacles.
Conflict and Resolution: The quatrain explores the complexities of conflict and the possibility of reconciliation.
Submission and Grace: In the face of insurmountable odds, the poet is willing to submit gracefully.

Deeper Meaning:

This quatrain is a testament to the human spirit's ability to endure and overcome. It suggests that even in the face of great adversity, there is always hope for resolution or a chance for peace. The poet's willingness to both fight and submit highlights the complexities of human nature.

This quatrain is a timeless exploration of conflict, courage, and the human condition. It reminds us that even in the darkest of times, there is always a choice to be made, and that hope can be found even in the most challenging circumstances.