When we meditate, some people say we are practising dying, again and again. In relationships we have the same. How many times can you let go - again and again? How many times can we die, only to trust in coming back to Life, more vigorously and authentically than ever before? It is as a friend put in an email this morning:
"It is just like you trust breathing - letting all the air out of your system despite not seeing if there will be more air to breath in seconds later."
NB: this only works when the letting go and the dying really is felt authentically. You cannot have a near-death experience where you actually know all along that you will live. It's a bit crazy, but this is what we must go through.