Are you sure they are actual signs and not just you taking them as a sign when it is easily explained?
If you can confirm they are really signs, try looking into what they involve. For example, an omen ofa white moth landing on you could mean balance or stability, as well as the moth meaning to stop hiding yourself. When you combine those two symbols, you get a message of "to reach stability, stop hiding your emotions from others".
Try looking into every aspect of the event rather than the event as a whole. Sometimes spirits have a hard time manifesting in our world and as such their signs may become more like a puzzle.