I am glad that you can see the enlightenment of Zongsa Rinpoche. Rinpoche is a great virtue, and the four dharma seals are indeed very important ideas in Buddhist teachings. The greatness of the four seals is not because the Buddha has repeatedly emphasized its importance, but because our lives can be confirmed by the four seals everywhere. If you can study hard and think hard, I believe you will find great benefits and tangible benefits in it. Please refer to the following answers to your questions!
(1) Learning Buddhism is not entirely for self-cultivation. Why? Because our bodies can't be repaired, some bad factors in our hearts are innate, and they are habits formed by generations, which can't be changed in a day or two. Of course, people's big problems can indeed be changed through some big revelations or their own habits, but subtle problems are difficult. Let me say from the bottom of my heart that the benefits of Buddhism are boundless, and they will get different benefits because of their own needs. But the most important thing for Ben is that it is very personal. Compared with this, some small interests in real life can really be called petty profits. Just like the interest of Buddhism is a beautifully packaged jewel, what a pity if we don't regard jewelry as the most important thing, but hold a box and admire it again and again and put it aside?
(2) It's all good to learn Buddhism, but I haven't found any disadvantages at all. Of course, from the current point of view, there may be some inconvenience, and living habits and ways may change a little because of learning Buddhism. But this can't be called a disadvantage. For example, children are naturally fond of playing and don't like learning. If we change his nature and make him play less and study more, he will feel uncomfortable, but as an adult, it is easy to tell which is more important and which is lighter. So this change is good, not bad! The benefits of learning Buddhism as a businessman are also obvious. Buddhism tells us to be sincere to people, and so is doing business. Think about how many people in China start their business with a good attitude and sincerely serve their customers. But after a long time, business began to perfunctory. Cut corners if you can. Cut corners if you can. Slowly, I crossed all the foundations I had worked so hard to lay before. There are too many such examples around me. But it won't be like this after studying Buddhism. We will serve Dacong wholeheartedly. If our service is good and our products are good, there is no reason not to make money, right?
(3) It is definitely necessary to meditate and recite Buddha. Learning from books alone is definitely not as good as practicing. Besides, chanting Buddha does bring us many benefits, but we can't see it in a short time! The benefits of chanting Buddha are numerous. You can look for the induction record of chanting Buddha.
(4) It must be very difficult to learn all the 84,000 Buddhist teachings. Naturally, you need to find something suitable for your study. You can take your time, as long as you really learn Buddhism, there will definitely be many people willing to help you!
If you have any questions, please contact me. Although I don't study well and my ability is limited, I know many old practitioners, and I believe they are willing to help you with me! My email address: fofacen@ 126.com Thank you!