Dealing with rejection in a healthy way is a sizable mental feat. It takes years for people to master this and find positivity in rejection. Ultimately, the goal is to see failure as feedback in order to improve your strategies or to understand yourself and others. Rejection can catapult people into depression and make them nonfunctional and self-destructive. So it is important to learn how to buffer yourself against rejection and to have a healthy outlook which will make you resilient in life and love.
NOT ATTACHING YOURSELF TO AN OUTCOME FROM THE BEGINNING
This is a very powerful concept. This does not mean that you are indifferent to the impact a person has on you nor does it mean that you are closed off from love or from the risks associated when allowing yourself to be vulnerable with another. It means that you are open to love in general and not focusing on creating that with someone who is not open to love or is not open to loving YOU. It is a libertarian concept at heart (see post on Libertarian Love) since it means that you are not wishing an outcome for a person that they may not want for themselves. It is about going into relationships, courtship, and dating situations with the knowledge that the person may not feel about you the same way you feel about them and respecting this and not taking it personally. If you have this mindset from the beginning, you will be able to accept and understand that rejection is sometimes a blessing because on some level that person was honest enough with themselves and you to address some sort of incompatibility.