This sentence was describing a romantic love story in which two people would meet at the right time. Whether they would mature and be gentle to each other or not depended on whether they could overcome various difficulties and challenges to maintain a good relationship. This sentence might appear in novels, movies, or other literary works to express whether two people would have a good future after spending some time together. It implied that the interaction between two people needed time and space. Only when both of them were mature and stable could they establish a deep relationship and a stable marriage.