Q: When will all our difficulties be over?

A: That cannot be said. The difficulties are not likely to cease until the material resistance has been entirely conquered in principle.

…I meant that the difficulties in the physical (generally speaking, not in a particular case) could not be entirely absent so long as the material resistance to the supramental descent had [not] been overcome in principle. In principle means in essence, not in every detail of the coming development.

Ref: Guidance from Sri Aurobindo – Letters to a young disciple by Nagin Doshi