All we know to be true is the conscious present moment free from thought which is the only time or moment that we can experience anything ever. We can only hear, see, smell, feel, sense or do anything now, this moment. Things only happen now, so we can deal with only what happens now…the true real life rather than the thought created unconscious world in our heads.
Everything else is a temporary mental form of either your mind or the collective mind. A thought, a view, an opinion. Even those in our own head are a passing form, but those of others are not even from own mind, so how can we verify them?
Listen to your own inner peace, wisdom and heart not the thoughts of your mind or others.