You said it well bro, for someone to challenge himself or herself to reach a greater height has to deal highly with great determination, of course during the course of achieving a greater heights or reaching a greater height just like you said there must definitely be obstacles on the way and those obstacles might come in form of bad friends with negative energies and vibes it might also come in form of enemies who will always try to either give you bad advice or to pull you down, so it's now left for the individual to decide on what to do that is being determined to achieve a greater height irrespective of any obstacle that comes in his way.