The best time to trust God is not when you think you have it all figured out, but when you can't make sense of what's happening.
So if you're bewildered by your circumstances or perplexed by world events, it's time to trust Him.
And by saying 'trust in the Lord' we're not just voicing a platitude to make us feel like everything will turn out alright in the end...
To trust Him is to put your complete confidence in Him... do what's right... and continue to follow Him -- no matter how gut-wrenching the situation.
Trust in the Lord with all your heart, and do not lean on your own understanding. In all your ways acknowledge him, and he will make your paths straight (Pr.3:5-6).