Your presence
When you love someone, the best thing you can offer is your presence. How can you love if you are not there?
When Magdalena entered the room the next time, Inigo asked her for paper and ink. He had found the formula and did not want it to slip from his mind.
"In those who proceed from good to better, the good spirit touches such a soul gently and softly as when water drops upon a sponge, and the evil spirit strikes it sharply and noisily, causing disquiet as when water drops upon a stone."