Ask AI: Write a long thank you letter to a friend whom I underestimated and did not realize how important he was in my life.

Dear [Friend's Name], I trust this letter finds you in the best of health and high spirits. Writing this to you today moved by a profound feeling of gratitude, I recognize how daunting it can be to express the depth of my appreciation and the gratitude that resides in my heart, yet this letter is an earnest attempt to manifest what your friendship has meant to me. We've shared countless moments together, from the simple everyday chats to the extraordinary exploits, yet I realize now that during these times, I may not have fully understood the depth of your impact on my life. I must confess, I somewhat underestimated the importance of your unique role in my life. However, with time I've come to realize that every conversation, every shared laughter, and even the moments of silence have left an indelible mark on me, shaping me in ways that I never could have imagined. The saying that 'one’s value is rarely recognized until their absence' is true. It took time, and distance perhaps, to truly appreciate the value of your companionship. Your unwavering support and your unrestrained altruism speak volumes about the person you are and the depth of our friendship. For all of this, I am grateful. I thank you for being the supportive pillar in my life, the shoulder on which I could lean on, and for caring enough to guide me when I was lost or struggling. Thank you for standing by me, even when I failed to recognize how vital you were to my balance. I appreciate the strength of your convictions and your unyielding loyalty. Your constant encouragement in my times of self-doubt and your warmth in the times of despair will forever be etched in my heart. In retrospection, I realize the magnitude of your contribution in shaping me into the person that I am today. The laughs we’ve shared, the tears we've shredded - they have all been crucial in fostering a friendship that I hold so dear today, and for that, I hold an abundance of gratitude. I am reminded of a quote by Albert Schweitzer, "At times, our own light goes out and is rekindled by a spark from another person. Each of us has cause to think with deep gratitude of those who have lighted the flame within us". You, dear friend, have continuously rekindled my light, and for that, I am deeply grateful. Now I see clearer than ever that it is often the simplest gestures that make the grandest difference, and it is in these simple gestures that I found a confidant, a companion, and a true friend. The enormity of my underestimation stands apparent and I can't help but feel the imperative need to acknowledge it. As I continue on this journey of life, I am comforted by the knowledge that I have you by my side. I look forward to many more years of our fruitful friendship, knowing that I have someone to rely on and who makes me want to be a better person. In conclusion, dear friend, I wanted to let you know that your role in my life is held in high esteem. I am grateful for your presence, your support, and above all, for your friendship. With utmost sincerity and deepest gratitude, [Your Name]