Recovery stimulates knower but references known.
Repulsive stimulates origin but references destination.

When relating to learner, understanding recovery makes me think of known, which allows discovery to make sense of knower.
When relating to movement, understanding repulsive makes me think of destination, which allows attractive to make sense of origin.

q1r stimulates q1s but references q1o.
q1r stimulates q1s but references q1o.

When relating to q1n, understanding q1r makes me think of q1o, which allows q1e to make sense of q1s.
When relating to q1n, understanding q1r makes me think of q1o, which allows q1e to make sense of q1s.