This is wonderful. thanks for the sharing. How blessed to begin the day with Manjushri in our mindstreams. A good practice for anyone to start the day! I was given very good advice by my Lama once to begin every day, just before we begin our work, with a short prayer to a particular Buddha. For example, if you are in an career that requires the skill of communication or speaking or public relations, to do short prayers to Manjushri or of course Dorje Shugden. Even if you can't remember the actual prayers, just think before you start your work, or begin typing your first word, or make that first phone call, "May I use this day to be beneficial and useful to others". Then do some mantras at least if you can. Then we have the Buddhas with us, and good motivation throughout the day.
This example here of Serpom is also very good for us to reflect upon what we were doing at their age, or even what we are doing right now when we are much older than them! It is awesome to think that many of these monks (if not all) will dedicate the rest of their lives to the service of others until they are well into their 70s or 80s, just like the many old monks we see today in the monasteries too.
What we will be doing when we're in our 70s?