"He told me that from now on, everything I did and everything..." — Francoise Gilot quote meaning

He told me that from now on, everything I did and everything he did was of the utmost importance: any word spoken, the slightest gesture, would take on a meaning, and everything that happened between us would change us continually. 'For that reason,'he said,'I wish I were able to suspend time at this moment and keep things exactly at this point, because I feel this instant is a true beginning. We have a definite but unknown quantity of experience at our disposal. As soon as the hourglass is turned, the sand will begin to run out and once it starts, it cannot stop until it's all gone. That's why I wish I could hold it back at the start. We should make a minimum of gestures, pronounce a minimum of words, even see each other as seldom as possible, if that would prolong things. We don't know how much of everything we have ahead of us so we have to take the greatest precautions not to destroy the beauty of what we have. Everything exists in limited quantity-especially happiness. If a love is to come into being, it is all written down somewhere, and also its duration and content. If you could arrive at the complete intensity the first day, it would be ended the first day. And so if it's something you want so much that you'd like to have it prolonged in time, you must be extremely careful not to make the slightest excessive demand that might prevent it from developing to the greatest extent over the longest period...If the wings of the butterfly are to keep their sheen, you mustn't touch them. We mustn't abuse something which is to bring light into both our lives. Everything else in my life only weighs me down and shuts out the light. This thing wih you seems like a window that is opening up. I want it to remain open...