When it comes to expressing the deepest thoughts and emotions, the phrase "inmost minds" comes to mind. However, there are other synonyms that can be used to convey similar meanings. One possible alternative is "innermost thoughts," which refers to the most private and personal thoughts one has. Another synonym is "deepest feelings," which conveys the intense emotions that are sometimes difficult to articulate. "Innermost desires" is another option that describes the secret longings that reside within us. "Most intimate thoughts" is also a good choice, as it suggests the most personal and close-to-the-heart ideas and reflections. Overall, there are many words and phrases that can be used to describe the most profound and heartfelt aspects of our inner selves.