I think if a person has the right attitude- and wants his 3rd eye awakened, not out of a sense of self-pride, but to be a blessing for others, then it will be a blessing in our lives.
There is a part of our human nature that would love these gifts as a sort of 'accessory" to our self-esteem. That attitude isnt healthy and may be why many of us will never have our 3rd eye opened until we die to that part of our self nature.
If you want to be awakened - i'd follow the excersizes they say to do- (if any) and then pray for Divine help in this goal-- but that you will use it as a blessing to others in this sick World and then it will be a blessing.