The phrase "to pass the trains" means to go through difficult or challenging situations successfully without being affected negatively by them. Full definition
The deeper tunnel would nearly eliminate any noticeable vibrations from passing trains. (transportation.gov)
The dogs who pass the training program are matched with humans in need of mobility assistance, seizure alerts, autism assistance, and hearing and guide help. (dogwithblog.in)
All staff must attend or take the online course and successfully pass these trainings, perhaps as part of their induction program. (enyotalearning.com)