How to get in touch about the matter of life and death
There is a college course called "Death and Dying" that human services and psychology majors take that helps them to understand this part of life. You may want to see if you can take this class or at least do the reading that they do for this class.
Also, you can volunteer at eldercare facilities or get involved in the care of your elderly relatives. Knowing those who are more mature helps to fully understand the cycle of life.