The phrase "several reasons" means that there are multiple explanations or causes for something. It is an idiomatic expression used to indicate that a situation has more than one cause, and it can be used in both positive and negative contexts. For example, if someone says they like a certain place because of several reasons, then the person would have enjoyed their visit due to multiple factors such as good weather, friendly people or interesting attractions. On the other hand, if someone says there are several reasons not to do something, it means that there are many negative aspects involved and it is best avoided.