Similarly to a "justification statement," what could be the description of "an importance of a study part" in a research?

Assuming there is a research titled "Veterans with moral hurt," what could be the contributions of the importance of a study part to the theory?

What could be the contribution of the importance of a study part to the knowledge?

What could be the contribution of the importance of a study part to the psychological gap the research could address?

How might the results of the importance of a study part make an original contribution to the knowledge and practice?

Can you provide the references/sources that were used to obtain the responses?

Note: There is no existing study yet. As stated above (Assuming there is a research titled "Veterans with moral hurt"), the requirements are to be provided on an imaginary topic of "veterans with moral hurt".