First of all, please note that deleting a goal is permanent.
1. To delete an individual goal, first tap on the goal you wish to delete. In each Dream/Habit/Task detail page, there is a trash icon on the top-right corner. Click the “Delete” button and it’s gone.
2. To delete multiple goals at once, first tap on "Edit" in the upper-right hand corner.
Then select all the goals you wish to delete and select the "Delete" icon in the Action bar at the bottom-right corner of the screen.