Be flexible. You can overcome any obstacle. You can go around, you can go through it, you can merge. No need for struggle. Teach others the same.
Read the text from Richard Wilhelm's translation of the I Ching
“Water reaches its goal by flowing continually. It fills up every depression before it flows on. The superior man follows its example; he is concerned that goodness should be an established attribute of character rather than an accidental and isolated occurrence. So likewise in teaching others everything depends on consistency, for it is only through repetition that the pupil makes the material his own.“