Make the next one just a little bigger. Reach it too. Living a life of purpose means living your life on purpose. Idle moments certainly have their value. They bring peace, relaxation and contemplation.
Every big achievement is made from lots of little goals.
Those people who always know what they're working to accomplish are the ones who get things done. They cultivate a habit of setting goals and then reaching them. It's not complicated. It's not magic. But it does produce results which seem almost magical to anyone looking in from the outside.