So, the omen of Death is deeper than just seeing that we are going to die someday. It is not based on the basic visible facts. It is far deeper than the visible facts.
From the moment we were born, we are dying. Not only us… everyone & everything… Whether it is living or non-living, both categories are bound by the death. Everything dying from the moment it was born.
You will just know when the moment your "omen of death" comes to you! You will just know what to do next! Till then all these are just bundle of words and just teachings which you also believe that these are Buddhist Teachings!
Also, till you see the omen of death, you are worried about your life. You protect your life. You fear for death. Your attachment for yours & others’ lives is higher. Thinking about the death of a beloved one makes you sad. Basically, the topic of death makes you uncomfortable. But when you see the omen of death, your only interest becomes to find a solution only. You don’t worry about the death. The feeling of still living surprise you more than the death. Because you see how fragile you & everything are!
First Level - There is an ordinary view of death process, which is a blind way, obviously. Because it is purely relying upon the external, visible facts of life. This is the view of majority. This was the view of Channa the Charioteer too. "We were born...and we can die any time. Anytime but not now… still got time though… Everyone has to face the death soon if they were not careful. We can delay the death by taking precautions and certain protections. So, we must follow this kind of lifestyle to maintain our life to delay the death”, This First Level View is so limited and purely rely upon the visible facts!
Second Level - There is the extraordinary view of seeing the omen of death process. When compared to the first level, this level is filled with little bit of wisdom. In this level, a person able to see the "death process of everything including own self" by its true nature. This level is not relying upon the visible facts! And the mind is set to liberate and focused on finding the eternal truth!
Third Level - The Correct View of death process. This is also can be called as the noble view of death process. This view only can be explained by a Samma Sambuddha or a true disciple of Samma Sambuddha only. This level is far beyond what is visible and also far deeper than what one sees as the omen of death process. Without entering to this level, one can’t truly liberate.
The ordinary view. Blindly believing anything just because they are easy to understand. Remember, that's the nature of those who are in the first level. But at least you should be in the second level of extraordinary view, which dig deeper than what is visible. So, let's dig deep and clear the conclusions with the noble words of Samma Sambuddha!