It is always wise, particularly in the beginning, to balance your new intuitive and psychic understandings with good old common sense. A good psychic perception follows your common sense.
If a spiritual teacher says something that doesn't make sense to you, you should always listen to yourself and not the teacher. A little common sense would end all cults.
Someone maybe be able to meditate well, but if they can't manifest that meditation in just good common sense by loving and being king to those who are around them, then I can't say they're spiritually developed.
Overcoming fear has nothing to do with abandoning common sense. We retain our common sense, but we lose that emotion that is fear.
In tantra we don't believe in commandments. We believe in the moment and the truth that is applicable for that moment, as best we can sort it out with our heart, our intuition, our knowledge, our common sense.