Life is not going anywhere; there is no goal to it, no destination. Life is non-purposive, it simply is. Unless this understanding penetrates your heart, you cannot slow down.
Slowing down is not a question of any how; it is not a question of technique, method. We reduce everything into a how. There is a great how-to-ism all over the world, and every person, particularly the modern contemporary mind, has become a how-to-er: how to do this, how to do that, how to grow rich, how to be successful, how to influence people and win friends, how to meditate, even how to love. The day is not far off when some stupid guy is going to ask how to breathe.
It is not a question of how at all. Don't reduce life into technology. Life reduced into technology loses all flavor of joy.