Rambam says that the way in wich moshiach will come is unknown to us. It is closed to the prophets and there is no tradition wich explains it. It is based on the reading of pesukim.Thusly there are disputes about these things. A person should not become too involved or spend to much time in these matters for they do not bring fear or love of heaven.Rather a person should believe in general. In other words this is an exercise of futility.
