A example of a good intro:
The past should be left alone because it no longer exists. Yet, it is good that I still own my memories. Things I want to engrave, or the things I want to forget, will leave traces in my minds. Sometimes recollection is a joy. Memory is like putting together the puzzle pieces of previous experiences. I believe memory is the core of the soul — like the bulb in the light, without it the light cannot shine.
Leave the past alone. I believe in memory.