They are not separate processes; rather, they are closely connected (Brookfield 1987).
There is neither a right nor a wrong way of reflective thinking, there are just questions to explore.
A reflection essay is normally about a personal experience and a lesson or realization from it.
It is a personal account of what you think and feel during and after that experience.
Doing this involves revisiting your prior experience and knowledge of the topic you are exploring.
It also involves considering how and why you think the way you do.
It may also include what could be worse or better that happened.
It may also be about the lessons you learned or from which readers could learn.
You want the reader to keep reading until the conclusion. There is no specific reflection paper format for the body but you may consider describing the experience. Use adjectives to describe what you saw but also what you heard, smelled, felt, etc. Answer this question in details: What changed after that experience?
It is also in the body where your realizations or reflection should be written. It should be easy since there is no researching unlike when you are writing an informative essay. It may also include whether you think the effects of the incident is good or bad.