When we seek a sense of wholeness or completion, what we are really seeking is ourselves. This is because we are innately complete. We cannot be made any more complete than we already are.
To seek completion, therefore, is to seek yourself. However, seeking yourself in things that are not you will only lead to suffering. Seeking yourself in external things, in temporary feelings, in narrow ideologies, none of it will work.
When you chase after people to fill the role of a boyfriend, you are seeking yourself through another person. When you judge people by how much money or fame they have, you are seeking yourself through commodity. When you defend your ego, you are seeking yourself through a self-image.
The urge to seek yourself, to awaken to yourself, is natural and innate. But the places we aim that urge create confusion and suffering inside us.
Try an experiment and assume you are whole, that you need nothing added to you. Every wonderful moment and experience in your life has only ever come from within you and there they are always shining. Now see the ways in which you rob yourself of that sense of wholeness when you go about your day.
What makes you feel a sense of lack, of being less than miraculous? There lies the chance to discover where you are putting up illusory divisions within yourself.
See for yourself where and when you start self-seeking. Does it work? Or perhaps it is more like drinking saltwater, which only leaves you thirsty for more.
If you want peace, if you want love, if you want happiness, aim for the highest form of all three: eternity.