Having a like-minded friend or partner on the same journey can be empowering. If you do, it can be great for you both to share these things; you will grow. This is one of the reasons why practicing in a community (sangha) is useful.
If you don’t have “meditation-minded” people among your friends/family, then you may feel that it’s better to keep your insights to yourself, rather than to expose yourself to the misunderstanding of others. These insights are deeply “personal”.