People who follow different paths – Scientology for example – get stuck in their own maze created by their mind
Some may believe that truth lies in other planets or universes and desperately search for it. They go from books or “research” searching for clues and evidence. However , it is worthless they then get depressed and feel lonely since they don’t have anyone who shares their views
This does not mean that aliens or other species don’t exist. They do. But you may not get the same intelligence like us. They reach God , at times by a more direct simplicity. And some don’t ever get to God for a long time
Yogananda has written about other species. So has Trailoki baba
But information based on imagination and nit direct perception will leave you lost and sad