大開方便之門
dà​kāi​fāng​biàn​zhī​mén

to provide every possible convenience

  1. 大开 大開 dà​kāi verb
    to open wide
    to open something completely or fully
  2. 方便之门 方便之門 fāng​biàn​zhī​mén
    way of convenience; lucky break
    Literally "gate of convenience"; originally a Buddhist term for flexible methods used to help people find enlightenment, now used to mean providing a shortcut or special opportunity for someone.