He laughed at the enemies plans. When the enemies were conspiring and planning He laughed because He knew His plans were way bigger and He knew who would win. Make sure your plans don't set theirselves up as an enemy to His plan and keep God first in them and His ways first and this is a laughter you will never hear. He wants you to Dream and He wants you to be fulfilled in your purpose.
Jer 29:11. He knows the purpose He has for you and it is a good purpose. One that will prosper you and not harm you.
The other reason I believe He might laugh is when we tell Him our small little dreams that we can do. I believe like any parent He puts a smile on His face and shakes His head and says you can do anything you set your mind to baby but you forget you have MY MIND, MY STRENGTH,MY PROVISION!! You can do better than that because I will do it with you.
God can do anything, you know—far more than you could ever imagine or guess or request in your wildest dreams! He does it not by pushing us around but by working within us, his Spirit deeply and gently within us. Glory to God in the church! Glory to God in the Messiah, in Jesus! Glory down all the generations! Glory through all millennia! Oh, yes! (Ephesians 3:20, 21 MSG)
He's a gentle God and He doesn't begrudge you of dreams and He doesn't laugh at them. All He requires is that they bring glory to Him and that were always listening and ready to go bigger than we hoped or imagined.
CG n up in Him