The subconsciousness develops a certain feeling of gratitude towards every impression — irrespective of its nature. It is not inaccurate to say that while we might see someone concerning whom our conscious impression may be very unpleasant — he might insult us to our very face — the subconscious impression would still be a certain feeling of gratitude.
The simple reason for this feeling is that everything in life which approaches the deeper element of our being enriches our life, really enriches it, including all unpleasant experiences. This has no connection with the manner in which we must consciously conduct ourselves towards our outer impressions. The way in which we must consciously respond to anything, has nothing to do with what takes place subconsciously; in the subconsciousness everything leads to a certain feeling of thankfulness; there we receive every impression as a gift for which we must be grateful.
Source: Rudolf Steiner – GA 181 – Earthly Death and Cosmic Life: Lecture 6: Feelings of Unity and Sentiments of Gratitude: A Bridge to the Dead – Berlin, 19th March 1918
Translated by Harry Collison